207679-81-0Relevant academic research and scientific papers
Electrochemical oxidation of 5-hydroxymethyl tolterodine and identification of its oxidation products using liquid chromatography and mass spectrometry
Ku?erová, Pavla,Skopalová, Jana,Ku?era, Luká?,Táborsky, Jakub,?vecová, Hana,Lemr, Karel,Canka?, Petr,Barták, Petr
, p. 617 - 625 (2016)
The electrochemical behavior of 5-hydroxymethyl tolterodine (5-HMT), the active metabolite of antimuscarinic drugs tolterodine and fesoterodine used to treat urge incontinence and overactive bladder, was investigated using cyclic and differential pulse voltammetry at glassy carbon electrode. Electrooxidation of 5-HMT proceeds as a complex pH-dependent process. Controlled potential electrolysis of 5-HMT 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 oxidation centers of the studied molecule were located: the p-hydroxybenzyl alcohol group and the tertiary amino group. Oxidation of the first center proceeds in several steps leading to the formation of 5-formyl tolterodine, p-benzoquinone derivative and several dimeric, hydroxylated and methoxylated products depending on pH of the solution and electrode potential. The second center is oxidized preferentially in alkaline media at higher potentials under the hydrolytic cleavage of diisopropylamine and formation of corresponding aldehydes. Mechanism of the electrochemical oxidation of 5-HMT has been proposed.
NOVEL (R) AND RAC 3-(2-(ALLYLOXY)-5-METHYLPHENYL)-N,N-DIISOPROPYL-3- PHENYLPROPAN-1-AMINE AND ITS USE FOR SYNTHESIS OF (R) AND RAC-2-(3- (DIISOPROPYLAMINO)-1-PHENYLPROPYL)-4-(HYDROXYMETHYL)PHENOL
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, (2017/09/05)
The present invention relates to novel chiral 3-(2-(allyloxy)-5-methylphenyl)-N,N-diisopropyl-3-phenylpropan-1-amine (5) and racemic 3-(2-(allyloxy)-5-methylphenyl)-N,N-diisopropyl-3-phenylpropan-1-amine () and its use in improved and industrially advantageous process for preparation of chiral and racemic form of 2-(3-(diisopropylamino)-1-phenylpropyl)-4-(hydroxymethyl)phenol. Further, present invention relates to preparation of the same.
Formal synthesis of fesoterodine by acid-facilitated aromatic alkylation
Lee, Youngeun,Shabbir, Saira,Jeong, Yuri,Ban, Jaeyoung,Rhee, Hakjune
, p. 2885 - 2889 (2016/02/05)
The competitive muscarinic receptor antagonist fesoterodine is a congener of tolterodine and has better efficiency compared to tolterodine. In this study, we present an efficient synthesis of the fesoterodine intermediate 3-(3-diisopropylamino-1-phenylpropyl)-4-hydroxybenzaldehyde from ethyl benzoylacetate by Friedel-Crafts alkylation in the presence of an acid as a key reaction step. The synthesis is carried out by the reduction of the ketoester to a 1,3-diol, diisopropylamine substitution, and Friedel-Crafts alkylation, followed by reduction and chiral resolution.
Iridium-Catalyzed Enantioselective Allylic Substitution of Enol Silanes from Vinylogous Esters and Amides
Chen, Ming,Hartwig, John F.
supporting information, p. 13972 - 13979 (2016/01/15)
The enol silanes of vinylogous esters and amides are classic dienes for Diels-Alder reactions. Here, we report their reactivity as nucleophiles in Ir-catalyzed, enantioselective allylic substitution reactions. A variety of allylic carbonates react with these nucleophiles to give allylated products in good yields with high enantioselectivities and excellent branched-to-linear ratios. These reactions occur with KF or alkoxide as the additive, but mechanistic studies suggest that these additives do not activate the enol silanes. Instead, they serve as bases to promote the cyclometalation to generate the active Ir catalyst. The carbonate anion, which was generated from the oxidative addition of the allylic carbonate, likely activates the enol silanes to trigger their activity as nucleophiles for reactions with the allyliridium electrophile. The synthetic utility of this method was illustrated by the synthesis of the anti-muscarinic drug, fesoterodine.
PROCESS FOR THE PREPARATION OF OPTICALLY PURE FESOTERODINE DERIVATIVES
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, (2015/04/15)
3,3-diphenylpropylamines of general formula (I), particularly Fesoterodine, as well as their enantiomers, solvates and salts, can be produced by treating a compound of formula (II) with a chiral alcohol to yield the diastereomeric esters of formula (IV) and (IV′), which can be further transformed into a compound of formula (I), or an enantiomer, solvate or salt thereof, wherein R1 is C1-C8 alkyl; and R2 and R3, independently of one another, represent H or C1-C6 alkyl, or together form a ring of 3 to 7 members with the nitrogen to which they are bound.
PROCESS FOR THE PREPARATION OF FESOTERODINE
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Paragraph 0032; 0049, (2015/01/07)
The present invention relates to an improved process for the preparation of Fesoterodine and pharmaceutically acceptable salts thereof. The present invention particularly relates to a process for the preparation of Fesoterodine from O-benzyl tolterodine.
DESFESOTERODINE SALTS
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, (2014/01/08)
The invention relates to substantially pure Desfesoterodine salts, Desfesoterodine salts, solid state forms thereof and pharmaceutical compositions comprising one or more of the Desfesoterodine salts and/or solid state forms thereof.
PROCESS FOR THE PREPARATION OF FESOTERODINE OR ITS SALTS
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, (2013/04/13)
The present invention relates to a process for the preparation of fesoterodine or its salts.
PROCESS FOR THE PREPARATION OF OPTICALLY ACTIVE 3,3-DIPHENYLPROPYLAMINES
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, (2013/08/15)
The invention relates to a process for obtaining 3,3-diphenylpropylamines of general formula (I), particularly Fesoterodine, as well as their enantiomers, solvates and salts, comprising treating a compound of formula (II) with a chiral alcohol to yield the diastereomeric esters of formula (IV) and (IV'), which can be further transformed into a compound of formula (I), or an enantiomer, solvate or salt thereof, wherein R1 is C1-C8 alkyl; and R2 and R3, independently of one another, represent H or C1-C6 alkyl, or together form a ring of 3 to 7 members with the nitrogen to which they are bound.
PROCESS FOR THE PREPARATION OF 2-HYDROXY-4-PHENYL-3,4-DIHYDRO-2H-CHROMEN-6-YL-METHANOL AND (R)-FESO-DEACYL
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Paragraph 0081; 0082, (2013/04/10)
The present invention regards an improved and industrially advantageous process for the preparation of the 2-hydroxy-4-phenyl-3,4-dihydro-2H-chromen-6-yl-methanol intermediates, also called “feso chromenyl” and (R)-2-[3-(diisopropylamino)-1-phenylpropyl]-4-(hydroxymethyl)phenol, also called “(R)-feso deacyl”, which are in turn used in the synthesis of fesoterodine and in particular of fesoterodine fumarate. This process utilises reagents which are non-toxic and manageable at industrial level and enables obtaining a new stable and non-hygroscopic crystalline form of the key intermediate “(R)-feso deacyl”, called form B.

