Electrochemical oxidation of fesoterodine and identification of its oxidation products using liquid chromatography and mass spectrometry
The electrochemical behavior of fesoterodine (FES), an antimuscarinic drug used for the treatment of urge incontinence and overactive bladder, was investigated using linear sweep and cyclic voltammetry at a stationary and rotating disc glassy carbon electrodes. A single two-electron anodic signal of...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Kučerová, Pavla [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2015transfer abstract |
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| Schlagwörter: |
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| Umfang: |
9 |
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| Übergeordnetes Werk: |
Enthalten in: Computed tomographic morphometric analysis of lateral inclination C1 pedicle screw for atlantoaxial instability patients with a narrow C1 posterior arch - Zhang, Lei ELSEVIER, 2018, the journal of the International Society of Electrochemistry (ISE), New York, NY [u.a.] |
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| Übergeordnetes Werk: |
volume:159 ; year:2015 ; day:20 ; month:03 ; pages:131-139 ; extent:9 |
| Links: |
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| DOI / URN: |
10.1016/j.electacta.2015.01.190 |
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| 245 | 1 | 0 | |a Electrochemical oxidation of fesoterodine and identification of its oxidation products using liquid chromatography and mass spectrometry |
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| 520 | |a The electrochemical behavior of fesoterodine (FES), an antimuscarinic drug used for the treatment of urge incontinence and overactive bladder, was investigated using linear sweep and cyclic voltammetry at a stationary and rotating disc glassy carbon electrodes. A single two-electron anodic signal of FES was observed in neutral buffered aqueous methanolic solutions. Kinetics of alkaline hydrolysis of FES to its active metabolite 5-hydroxymethyl tolterodine was investigated by time dependent linear sweep voltammetry. Controlled potential electrolysis of FES solutions was performed at platinum gauze electrode in aqueous-methanolic media. Electrolyzed solutions were analyzed using ultra performance liquid chromatography with electrospray ionization quadrupole time-of-flight mass spectrometry. Two main products of electrochemical oxidation of fesoterodine were identified as 5-formyl fesoterodine (isobutyric acid 2-(3-diisopropylamino-1-phenyl-propyl)-4-formyl-phenyl ester) and N-desisopropylated fesoterodine (isobutyric acid 4-hydroxymethyl-2-(3-isopropylamino-1-phenyl-propyl)-phenyl ester). The mechanism of the electrochemical oxidation of FES has been proposed and confirmed using on-line electrochemistry/mass spectrometry with porous glassy carbon electrode. | ||
| 520 | |a The electrochemical behavior of fesoterodine (FES), an antimuscarinic drug used for the treatment of urge incontinence and overactive bladder, was investigated using linear sweep and cyclic voltammetry at a stationary and rotating disc glassy carbon electrodes. A single two-electron anodic signal of FES was observed in neutral buffered aqueous methanolic solutions. Kinetics of alkaline hydrolysis of FES to its active metabolite 5-hydroxymethyl tolterodine was investigated by time dependent linear sweep voltammetry. Controlled potential electrolysis of FES solutions was performed at platinum gauze electrode in aqueous-methanolic media. Electrolyzed solutions were analyzed using ultra performance liquid chromatography with electrospray ionization quadrupole time-of-flight mass spectrometry. Two main products of electrochemical oxidation of fesoterodine were identified as 5-formyl fesoterodine (isobutyric acid 2-(3-diisopropylamino-1-phenyl-propyl)-4-formyl-phenyl ester) and N-desisopropylated fesoterodine (isobutyric acid 4-hydroxymethyl-2-(3-isopropylamino-1-phenyl-propyl)-phenyl ester). The mechanism of the electrochemical oxidation of FES has been proposed and confirmed using on-line electrochemistry/mass spectrometry with porous glassy carbon electrode. | ||
| 650 | 7 | |a Hydrolysis |2 Elsevier | |
| 650 | 7 | |a Voltammetry |2 Elsevier | |
| 650 | 7 | |a Oxidation |2 Elsevier | |
| 650 | 7 | |a Fesoterodine |2 Elsevier | |
| 650 | 7 | |a Mass spectrometry |2 Elsevier | |
| 700 | 1 | |a Skopalová, Jana |4 oth | |
| 700 | 1 | |a Kučera, Lukáš |4 oth | |
| 700 | 1 | |a Hrbáč, Jan |4 oth | |
| 700 | 1 | |a Lemr, Karel |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier |a Zhang, Lei ELSEVIER |t Computed tomographic morphometric analysis of lateral inclination C1 pedicle screw for atlantoaxial instability patients with a narrow C1 posterior arch |d 2018 |d the journal of the International Society of Electrochemistry (ISE) |g New York, NY [u.a.] |w (DE-627)ELV001212419 |
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10.1016/j.electacta.2015.01.190 doi GBVA2015021000004.pica (DE-627)ELV013400959 (ELSEVIER)S0013-4686(15)00236-4 DE-627 ger DE-627 rakwb eng 540 540 DE-600 610 VZ 44.00 bkl Kučerová, Pavla verfasserin aut Electrochemical oxidation of fesoterodine and identification of its oxidation products using liquid chromatography and mass spectrometry 2015transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The electrochemical behavior of fesoterodine (FES), an antimuscarinic drug used for the treatment of urge incontinence and overactive bladder, was investigated using linear sweep and cyclic voltammetry at a stationary and rotating disc glassy carbon electrodes. A single two-electron anodic signal of FES was observed in neutral buffered aqueous methanolic solutions. Kinetics of alkaline hydrolysis of FES to its active metabolite 5-hydroxymethyl tolterodine was investigated by time dependent linear sweep voltammetry. Controlled potential electrolysis of FES solutions was performed at platinum gauze electrode in aqueous-methanolic media. Electrolyzed solutions were analyzed using ultra performance liquid chromatography with electrospray ionization quadrupole time-of-flight mass spectrometry. Two main products of electrochemical oxidation of fesoterodine were identified as 5-formyl fesoterodine (isobutyric acid 2-(3-diisopropylamino-1-phenyl-propyl)-4-formyl-phenyl ester) and N-desisopropylated fesoterodine (isobutyric acid 4-hydroxymethyl-2-(3-isopropylamino-1-phenyl-propyl)-phenyl ester). The mechanism of the electrochemical oxidation of FES has been proposed and confirmed using on-line electrochemistry/mass spectrometry with porous glassy carbon electrode. The electrochemical behavior of fesoterodine (FES), an antimuscarinic drug used for the treatment of urge incontinence and overactive bladder, was investigated using linear sweep and cyclic voltammetry at a stationary and rotating disc glassy carbon electrodes. A single two-electron anodic signal of FES was observed in neutral buffered aqueous methanolic solutions. Kinetics of alkaline hydrolysis of FES to its active metabolite 5-hydroxymethyl tolterodine was investigated by time dependent linear sweep voltammetry. Controlled potential electrolysis of FES solutions was performed at platinum gauze electrode in aqueous-methanolic media. Electrolyzed solutions were analyzed using ultra performance liquid chromatography with electrospray ionization quadrupole time-of-flight mass spectrometry. Two main products of electrochemical oxidation of fesoterodine were identified as 5-formyl fesoterodine (isobutyric acid 2-(3-diisopropylamino-1-phenyl-propyl)-4-formyl-phenyl ester) and N-desisopropylated fesoterodine (isobutyric acid 4-hydroxymethyl-2-(3-isopropylamino-1-phenyl-propyl)-phenyl ester). The mechanism of the electrochemical oxidation of FES has been proposed and confirmed using on-line electrochemistry/mass spectrometry with porous glassy carbon electrode. Hydrolysis Elsevier Voltammetry Elsevier Oxidation Elsevier Fesoterodine Elsevier Mass spectrometry Elsevier Skopalová, Jana oth Kučera, Lukáš oth Hrbáč, Jan oth Lemr, Karel oth Enthalten in Elsevier Zhang, Lei ELSEVIER Computed tomographic morphometric analysis of lateral inclination C1 pedicle screw for atlantoaxial instability patients with a narrow C1 posterior arch 2018 the journal of the International Society of Electrochemistry (ISE) New York, NY [u.a.] (DE-627)ELV001212419 volume:159 year:2015 day:20 month:03 pages:131-139 extent:9 https://doi.org/10.1016/j.electacta.2015.01.190 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.00 Medizin: Allgemeines VZ AR 159 2015 20 0320 131-139 9 045F 540 |
| spelling |
10.1016/j.electacta.2015.01.190 doi GBVA2015021000004.pica (DE-627)ELV013400959 (ELSEVIER)S0013-4686(15)00236-4 DE-627 ger DE-627 rakwb eng 540 540 DE-600 610 VZ 44.00 bkl Kučerová, Pavla verfasserin aut Electrochemical oxidation of fesoterodine and identification of its oxidation products using liquid chromatography and mass spectrometry 2015transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The electrochemical behavior of fesoterodine (FES), an antimuscarinic drug used for the treatment of urge incontinence and overactive bladder, was investigated using linear sweep and cyclic voltammetry at a stationary and rotating disc glassy carbon electrodes. A single two-electron anodic signal of FES was observed in neutral buffered aqueous methanolic solutions. Kinetics of alkaline hydrolysis of FES to its active metabolite 5-hydroxymethyl tolterodine was investigated by time dependent linear sweep voltammetry. Controlled potential electrolysis of FES solutions was performed at platinum gauze electrode in aqueous-methanolic media. Electrolyzed solutions were analyzed using ultra performance liquid chromatography with electrospray ionization quadrupole time-of-flight mass spectrometry. Two main products of electrochemical oxidation of fesoterodine were identified as 5-formyl fesoterodine (isobutyric acid 2-(3-diisopropylamino-1-phenyl-propyl)-4-formyl-phenyl ester) and N-desisopropylated fesoterodine (isobutyric acid 4-hydroxymethyl-2-(3-isopropylamino-1-phenyl-propyl)-phenyl ester). The mechanism of the electrochemical oxidation of FES has been proposed and confirmed using on-line electrochemistry/mass spectrometry with porous glassy carbon electrode. The electrochemical behavior of fesoterodine (FES), an antimuscarinic drug used for the treatment of urge incontinence and overactive bladder, was investigated using linear sweep and cyclic voltammetry at a stationary and rotating disc glassy carbon electrodes. A single two-electron anodic signal of FES was observed in neutral buffered aqueous methanolic solutions. Kinetics of alkaline hydrolysis of FES to its active metabolite 5-hydroxymethyl tolterodine was investigated by time dependent linear sweep voltammetry. Controlled potential electrolysis of FES solutions was performed at platinum gauze electrode in aqueous-methanolic media. Electrolyzed solutions were analyzed using ultra performance liquid chromatography with electrospray ionization quadrupole time-of-flight mass spectrometry. Two main products of electrochemical oxidation of fesoterodine were identified as 5-formyl fesoterodine (isobutyric acid 2-(3-diisopropylamino-1-phenyl-propyl)-4-formyl-phenyl ester) and N-desisopropylated fesoterodine (isobutyric acid 4-hydroxymethyl-2-(3-isopropylamino-1-phenyl-propyl)-phenyl ester). The mechanism of the electrochemical oxidation of FES has been proposed and confirmed using on-line electrochemistry/mass spectrometry with porous glassy carbon electrode. Hydrolysis Elsevier Voltammetry Elsevier Oxidation Elsevier Fesoterodine Elsevier Mass spectrometry Elsevier Skopalová, Jana oth Kučera, Lukáš oth Hrbáč, Jan oth Lemr, Karel oth Enthalten in Elsevier Zhang, Lei ELSEVIER Computed tomographic morphometric analysis of lateral inclination C1 pedicle screw for atlantoaxial instability patients with a narrow C1 posterior arch 2018 the journal of the International Society of Electrochemistry (ISE) New York, NY [u.a.] (DE-627)ELV001212419 volume:159 year:2015 day:20 month:03 pages:131-139 extent:9 https://doi.org/10.1016/j.electacta.2015.01.190 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.00 Medizin: Allgemeines VZ AR 159 2015 20 0320 131-139 9 045F 540 |
| allfields_unstemmed |
10.1016/j.electacta.2015.01.190 doi GBVA2015021000004.pica (DE-627)ELV013400959 (ELSEVIER)S0013-4686(15)00236-4 DE-627 ger DE-627 rakwb eng 540 540 DE-600 610 VZ 44.00 bkl Kučerová, Pavla verfasserin aut Electrochemical oxidation of fesoterodine and identification of its oxidation products using liquid chromatography and mass spectrometry 2015transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The electrochemical behavior of fesoterodine (FES), an antimuscarinic drug used for the treatment of urge incontinence and overactive bladder, was investigated using linear sweep and cyclic voltammetry at a stationary and rotating disc glassy carbon electrodes. A single two-electron anodic signal of FES was observed in neutral buffered aqueous methanolic solutions. Kinetics of alkaline hydrolysis of FES to its active metabolite 5-hydroxymethyl tolterodine was investigated by time dependent linear sweep voltammetry. Controlled potential electrolysis of FES solutions was performed at platinum gauze electrode in aqueous-methanolic media. Electrolyzed solutions were analyzed using ultra performance liquid chromatography with electrospray ionization quadrupole time-of-flight mass spectrometry. Two main products of electrochemical oxidation of fesoterodine were identified as 5-formyl fesoterodine (isobutyric acid 2-(3-diisopropylamino-1-phenyl-propyl)-4-formyl-phenyl ester) and N-desisopropylated fesoterodine (isobutyric acid 4-hydroxymethyl-2-(3-isopropylamino-1-phenyl-propyl)-phenyl ester). The mechanism of the electrochemical oxidation of FES has been proposed and confirmed using on-line electrochemistry/mass spectrometry with porous glassy carbon electrode. The electrochemical behavior of fesoterodine (FES), an antimuscarinic drug used for the treatment of urge incontinence and overactive bladder, was investigated using linear sweep and cyclic voltammetry at a stationary and rotating disc glassy carbon electrodes. A single two-electron anodic signal of FES was observed in neutral buffered aqueous methanolic solutions. Kinetics of alkaline hydrolysis of FES to its active metabolite 5-hydroxymethyl tolterodine was investigated by time dependent linear sweep voltammetry. Controlled potential electrolysis of FES solutions was performed at platinum gauze electrode in aqueous-methanolic media. Electrolyzed solutions were analyzed using ultra performance liquid chromatography with electrospray ionization quadrupole time-of-flight mass spectrometry. Two main products of electrochemical oxidation of fesoterodine were identified as 5-formyl fesoterodine (isobutyric acid 2-(3-diisopropylamino-1-phenyl-propyl)-4-formyl-phenyl ester) and N-desisopropylated fesoterodine (isobutyric acid 4-hydroxymethyl-2-(3-isopropylamino-1-phenyl-propyl)-phenyl ester). The mechanism of the electrochemical oxidation of FES has been proposed and confirmed using on-line electrochemistry/mass spectrometry with porous glassy carbon electrode. Hydrolysis Elsevier Voltammetry Elsevier Oxidation Elsevier Fesoterodine Elsevier Mass spectrometry Elsevier Skopalová, Jana oth Kučera, Lukáš oth Hrbáč, Jan oth Lemr, Karel oth Enthalten in Elsevier Zhang, Lei ELSEVIER Computed tomographic morphometric analysis of lateral inclination C1 pedicle screw for atlantoaxial instability patients with a narrow C1 posterior arch 2018 the journal of the International Society of Electrochemistry (ISE) New York, NY [u.a.] (DE-627)ELV001212419 volume:159 year:2015 day:20 month:03 pages:131-139 extent:9 https://doi.org/10.1016/j.electacta.2015.01.190 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.00 Medizin: Allgemeines VZ AR 159 2015 20 0320 131-139 9 045F 540 |
| allfieldsGer |
10.1016/j.electacta.2015.01.190 doi GBVA2015021000004.pica (DE-627)ELV013400959 (ELSEVIER)S0013-4686(15)00236-4 DE-627 ger DE-627 rakwb eng 540 540 DE-600 610 VZ 44.00 bkl Kučerová, Pavla verfasserin aut Electrochemical oxidation of fesoterodine and identification of its oxidation products using liquid chromatography and mass spectrometry 2015transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The electrochemical behavior of fesoterodine (FES), an antimuscarinic drug used for the treatment of urge incontinence and overactive bladder, was investigated using linear sweep and cyclic voltammetry at a stationary and rotating disc glassy carbon electrodes. A single two-electron anodic signal of FES was observed in neutral buffered aqueous methanolic solutions. Kinetics of alkaline hydrolysis of FES to its active metabolite 5-hydroxymethyl tolterodine was investigated by time dependent linear sweep voltammetry. Controlled potential electrolysis of FES solutions was performed at platinum gauze electrode in aqueous-methanolic media. Electrolyzed solutions were analyzed using ultra performance liquid chromatography with electrospray ionization quadrupole time-of-flight mass spectrometry. Two main products of electrochemical oxidation of fesoterodine were identified as 5-formyl fesoterodine (isobutyric acid 2-(3-diisopropylamino-1-phenyl-propyl)-4-formyl-phenyl ester) and N-desisopropylated fesoterodine (isobutyric acid 4-hydroxymethyl-2-(3-isopropylamino-1-phenyl-propyl)-phenyl ester). The mechanism of the electrochemical oxidation of FES has been proposed and confirmed using on-line electrochemistry/mass spectrometry with porous glassy carbon electrode. The electrochemical behavior of fesoterodine (FES), an antimuscarinic drug used for the treatment of urge incontinence and overactive bladder, was investigated using linear sweep and cyclic voltammetry at a stationary and rotating disc glassy carbon electrodes. A single two-electron anodic signal of FES was observed in neutral buffered aqueous methanolic solutions. Kinetics of alkaline hydrolysis of FES to its active metabolite 5-hydroxymethyl tolterodine was investigated by time dependent linear sweep voltammetry. Controlled potential electrolysis of FES solutions was performed at platinum gauze electrode in aqueous-methanolic media. Electrolyzed solutions were analyzed using ultra performance liquid chromatography with electrospray ionization quadrupole time-of-flight mass spectrometry. Two main products of electrochemical oxidation of fesoterodine were identified as 5-formyl fesoterodine (isobutyric acid 2-(3-diisopropylamino-1-phenyl-propyl)-4-formyl-phenyl ester) and N-desisopropylated fesoterodine (isobutyric acid 4-hydroxymethyl-2-(3-isopropylamino-1-phenyl-propyl)-phenyl ester). The mechanism of the electrochemical oxidation of FES has been proposed and confirmed using on-line electrochemistry/mass spectrometry with porous glassy carbon electrode. Hydrolysis Elsevier Voltammetry Elsevier Oxidation Elsevier Fesoterodine Elsevier Mass spectrometry Elsevier Skopalová, Jana oth Kučera, Lukáš oth Hrbáč, Jan oth Lemr, Karel oth Enthalten in Elsevier Zhang, Lei ELSEVIER Computed tomographic morphometric analysis of lateral inclination C1 pedicle screw for atlantoaxial instability patients with a narrow C1 posterior arch 2018 the journal of the International Society of Electrochemistry (ISE) New York, NY [u.a.] (DE-627)ELV001212419 volume:159 year:2015 day:20 month:03 pages:131-139 extent:9 https://doi.org/10.1016/j.electacta.2015.01.190 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.00 Medizin: Allgemeines VZ AR 159 2015 20 0320 131-139 9 045F 540 |
| allfieldsSound |
10.1016/j.electacta.2015.01.190 doi GBVA2015021000004.pica (DE-627)ELV013400959 (ELSEVIER)S0013-4686(15)00236-4 DE-627 ger DE-627 rakwb eng 540 540 DE-600 610 VZ 44.00 bkl Kučerová, Pavla verfasserin aut Electrochemical oxidation of fesoterodine and identification of its oxidation products using liquid chromatography and mass spectrometry 2015transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The electrochemical behavior of fesoterodine (FES), an antimuscarinic drug used for the treatment of urge incontinence and overactive bladder, was investigated using linear sweep and cyclic voltammetry at a stationary and rotating disc glassy carbon electrodes. A single two-electron anodic signal of FES was observed in neutral buffered aqueous methanolic solutions. Kinetics of alkaline hydrolysis of FES to its active metabolite 5-hydroxymethyl tolterodine was investigated by time dependent linear sweep voltammetry. Controlled potential electrolysis of FES solutions was performed at platinum gauze electrode in aqueous-methanolic media. Electrolyzed solutions were analyzed using ultra performance liquid chromatography with electrospray ionization quadrupole time-of-flight mass spectrometry. Two main products of electrochemical oxidation of fesoterodine were identified as 5-formyl fesoterodine (isobutyric acid 2-(3-diisopropylamino-1-phenyl-propyl)-4-formyl-phenyl ester) and N-desisopropylated fesoterodine (isobutyric acid 4-hydroxymethyl-2-(3-isopropylamino-1-phenyl-propyl)-phenyl ester). The mechanism of the electrochemical oxidation of FES has been proposed and confirmed using on-line electrochemistry/mass spectrometry with porous glassy carbon electrode. The electrochemical behavior of fesoterodine (FES), an antimuscarinic drug used for the treatment of urge incontinence and overactive bladder, was investigated using linear sweep and cyclic voltammetry at a stationary and rotating disc glassy carbon electrodes. A single two-electron anodic signal of FES was observed in neutral buffered aqueous methanolic solutions. Kinetics of alkaline hydrolysis of FES to its active metabolite 5-hydroxymethyl tolterodine was investigated by time dependent linear sweep voltammetry. Controlled potential electrolysis of FES solutions was performed at platinum gauze electrode in aqueous-methanolic media. Electrolyzed solutions were analyzed using ultra performance liquid chromatography with electrospray ionization quadrupole time-of-flight mass spectrometry. Two main products of electrochemical oxidation of fesoterodine were identified as 5-formyl fesoterodine (isobutyric acid 2-(3-diisopropylamino-1-phenyl-propyl)-4-formyl-phenyl ester) and N-desisopropylated fesoterodine (isobutyric acid 4-hydroxymethyl-2-(3-isopropylamino-1-phenyl-propyl)-phenyl ester). The mechanism of the electrochemical oxidation of FES has been proposed and confirmed using on-line electrochemistry/mass spectrometry with porous glassy carbon electrode. Hydrolysis Elsevier Voltammetry Elsevier Oxidation Elsevier Fesoterodine Elsevier Mass spectrometry Elsevier Skopalová, Jana oth Kučera, Lukáš oth Hrbáč, Jan oth Lemr, Karel oth Enthalten in Elsevier Zhang, Lei ELSEVIER Computed tomographic morphometric analysis of lateral inclination C1 pedicle screw for atlantoaxial instability patients with a narrow C1 posterior arch 2018 the journal of the International Society of Electrochemistry (ISE) New York, NY [u.a.] (DE-627)ELV001212419 volume:159 year:2015 day:20 month:03 pages:131-139 extent:9 https://doi.org/10.1016/j.electacta.2015.01.190 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.00 Medizin: Allgemeines VZ AR 159 2015 20 0320 131-139 9 045F 540 |
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Enthalten in Computed tomographic morphometric analysis of lateral inclination C1 pedicle screw for atlantoaxial instability patients with a narrow C1 posterior arch New York, NY [u.a.] volume:159 year:2015 day:20 month:03 pages:131-139 extent:9 |
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Enthalten in Computed tomographic morphometric analysis of lateral inclination C1 pedicle screw for atlantoaxial instability patients with a narrow C1 posterior arch New York, NY [u.a.] volume:159 year:2015 day:20 month:03 pages:131-139 extent:9 |
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Computed tomographic morphometric analysis of lateral inclination C1 pedicle screw for atlantoaxial instability patients with a narrow C1 posterior arch |
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Electrochemical oxidation of fesoterodine and identification of its oxidation products using liquid chromatography and mass spectrometry |
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The electrochemical behavior of fesoterodine (FES), an antimuscarinic drug used for the treatment of urge incontinence and overactive bladder, was investigated using linear sweep and cyclic voltammetry at a stationary and rotating disc glassy carbon electrodes. A single two-electron anodic signal of FES was observed in neutral buffered aqueous methanolic solutions. Kinetics of alkaline hydrolysis of FES to its active metabolite 5-hydroxymethyl tolterodine was investigated by time dependent linear sweep voltammetry. Controlled potential electrolysis of FES solutions was performed at platinum gauze electrode in aqueous-methanolic media. Electrolyzed solutions were analyzed using ultra performance liquid chromatography with electrospray ionization quadrupole time-of-flight mass spectrometry. Two main products of electrochemical oxidation of fesoterodine were identified as 5-formyl fesoterodine (isobutyric acid 2-(3-diisopropylamino-1-phenyl-propyl)-4-formyl-phenyl ester) and N-desisopropylated fesoterodine (isobutyric acid 4-hydroxymethyl-2-(3-isopropylamino-1-phenyl-propyl)-phenyl ester). The mechanism of the electrochemical oxidation of FES has been proposed and confirmed using on-line electrochemistry/mass spectrometry with porous glassy carbon electrode. |
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The electrochemical behavior of fesoterodine (FES), an antimuscarinic drug used for the treatment of urge incontinence and overactive bladder, was investigated using linear sweep and cyclic voltammetry at a stationary and rotating disc glassy carbon electrodes. A single two-electron anodic signal of FES was observed in neutral buffered aqueous methanolic solutions. Kinetics of alkaline hydrolysis of FES to its active metabolite 5-hydroxymethyl tolterodine was investigated by time dependent linear sweep voltammetry. Controlled potential electrolysis of FES solutions was performed at platinum gauze electrode in aqueous-methanolic media. Electrolyzed solutions were analyzed using ultra performance liquid chromatography with electrospray ionization quadrupole time-of-flight mass spectrometry. Two main products of electrochemical oxidation of fesoterodine were identified as 5-formyl fesoterodine (isobutyric acid 2-(3-diisopropylamino-1-phenyl-propyl)-4-formyl-phenyl ester) and N-desisopropylated fesoterodine (isobutyric acid 4-hydroxymethyl-2-(3-isopropylamino-1-phenyl-propyl)-phenyl ester). The mechanism of the electrochemical oxidation of FES has been proposed and confirmed using on-line electrochemistry/mass spectrometry with porous glassy carbon electrode. |
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The electrochemical behavior of fesoterodine (FES), an antimuscarinic drug used for the treatment of urge incontinence and overactive bladder, was investigated using linear sweep and cyclic voltammetry at a stationary and rotating disc glassy carbon electrodes. A single two-electron anodic signal of FES was observed in neutral buffered aqueous methanolic solutions. Kinetics of alkaline hydrolysis of FES to its active metabolite 5-hydroxymethyl tolterodine was investigated by time dependent linear sweep voltammetry. Controlled potential electrolysis of FES solutions was performed at platinum gauze electrode in aqueous-methanolic media. Electrolyzed solutions were analyzed using ultra performance liquid chromatography with electrospray ionization quadrupole time-of-flight mass spectrometry. Two main products of electrochemical oxidation of fesoterodine were identified as 5-formyl fesoterodine (isobutyric acid 2-(3-diisopropylamino-1-phenyl-propyl)-4-formyl-phenyl ester) and N-desisopropylated fesoterodine (isobutyric acid 4-hydroxymethyl-2-(3-isopropylamino-1-phenyl-propyl)-phenyl ester). The mechanism of the electrochemical oxidation of FES has been proposed and confirmed using on-line electrochemistry/mass spectrometry with porous glassy carbon electrode. |
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