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Usage

Uses

Used in Pharmaceutical Industry:
Solifenacin Related Compound 4 Succinate is used as a muscarinic M3 receptor antagonist for the treatment of urinary incontinence. It works by blocking the action of acetylcholine on the M3 receptors in the bladder, which helps to reduce the frequency and urgency of urination, thereby providing relief to patients suffering from this condition.

Upstream product

• 110-15-6 succinic acid 
• 242478-37-1 solifenacin 
• 732228-02-3 (1S)-3,4-dihydro-1-phenyl-2-(1H)-isoquinolinecarboxylic acid (3S)-1-azabicyclo[2.2.2]oct-3-yl ester 
• 740780-79-4 (3R)-1-azabicyclo[2.2.2]oct-3-yl (1R)-3,4-dihydro-1-phenyl-2(1H)-isoquinolinecarboxylate 
• 22990-19-8 (S)-1-phenyl-1,2,3,4-tetrahydroisoquinoline 
• 180468-42-2 (S)-N-carboxylic acid ethyl ester-1-phenyl-1,2,3,4-tetrahydroisoquinoline 
• 1619-34-7 3-quinuclidinol 

Relevant academic research and scientific papers

An improved process for the preparation of highly pure solifenacin succinate via resolution through diastereomeric crystallisation

An improved process for the preparation of solifenacin succinate (1) involving resolution through diastereomeric crystallization is described. (1S)-IQL derivative (5) is esterified to form (1S)-ethoxycarbonyl IQL derivative (6) which is condensed with (RS)-3-quinuclidinol (7) to form a solifenacin diastereomeric mixture (8); this is subjected to resolution through diastereomeric crystallization to produce solifenacin succinate (1), which is used for the treatment of an overactive bladder.

NOVEL PROCESS FOR THE PREPARATION OF SOLIFENACIN SUCCINATE

The present invention relates to a process for the preparation of Solifenacin succinate by condensing a compound of formula (IVb) with (RS)-3-quinuclidinol, wherein, R represents methyl, ethyl, isopropyl; to produce a diastereomeric mixture of ( 1S)-3,4-dihydro- 1 -phenyl-2( 1 H)-isoquinolinecarboxylic acid (3RS)- 1 - azabicyclo[2.2.2]oct-3-yl ester, which is treated with succinic acid in a solvent or mixture of solvents to produce optically pure Solifenacin succinate, Formula (X).

A METHOD FOR THE PREPARATION OF SOLIFENACIN

A method of preparing (lS)-(3R)-l-azabicyclo[2.2.2]oct-3-yl 3,4-dihydro-l-phenyl-2(lH)- isoquinoline carboxylate (solifenacin) or its pharmaceutically acceptable salts with high optic purity, wherein the crude solifenacin base is transformed to the hydrogen tartrate, which is then optionally transformed to another pharmaceutically acceptable salt or the base of solifenacin. A crystalline salt of solifenacin hydrogen tartrate.

COMPOSITION CONTAINING SOLIFENACIN SUCCINATE

A solifenacin succinate-containing composition with less impurities which can be used as a bulk for pharmaceutical is provided. The solifenacin succinate-containing compostiion of the present invention has a reduced content of especially its optical isomers in comparison with the known compositions containing an acid addition salt of solifenacin, so that it can be used for production of a therapeutic agent containing solifenacin succinate. In addition, the above-described solifenacin succinate-containing composition can be easily produced in accordance with the production method of the present invention.