EA200200110 PROCESS FOR THE PREPARATION OF ISOTRETINOIN

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Eurasian Patent Organization

Application Number 200200110

Application Date 24.07.2000

Publication Number 200200110

Publication Date 29.08.2002

Grant Number 004651

Grant Date 24.06.2004

Publication Kind B1

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CPC

Applicants РЭНБАКСИ ЛАБОРАТОРИЗ ЛИМИТЕД null
RANBAXY LABORATORIES LIMITED null

Inventors Салман Мохаммад
Каул Виджей Кумар
Бабу Дж. Суреш
Кумар Нареш
SALMAN Mohammad
KAUL Vijay, Kumar
BABU J, Suresh
KUMAR Naresh

Agents Курышев Владимир Васильевич
Kuryshev V, V

Priority Data 1037/DEL/99 30.07.1999 IN
09467201 20.12.1999 US

Title

(EN) PROCESS FOR THE PREPARATION OF ISOTRETINOIN

(RU) СПОСОБ ПОЛУЧЕНИЯ ИЗОТРЕТИНОИНА

Abstract

(RU)

Настоящее изобретение относится с способу получения 13-цис-изомера витамина А -кислоты, как правило, известного как изотретиноин, в одну стадию.

C	CHEMISTRY; METALLURGY
07	ORGANIC CHEMISTRY
C	ACYCLIC OR CARBOCYCLIC COMPOUNDS
403	Derivatives of cyclohexane or of a cyclohexene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene rings, e.g. vitamin A, beta-carotene, beta-ionone
20	having side-chains substituted by carboxyl groups

C	CHEMISTRY; METALLURGY
07	ORGANIC CHEMISTRY
C	ACYCLIC OR CARBOCYCLIC COMPOUNDS
403	Derivatives of cyclohexane or of a cyclohexene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene rings, e.g. vitamin A, beta-carotene, beta-ionone
20	having side-chains substituted by carboxyl groups

C	CHEMISTRY; METALLURGY
07	ORGANIC CHEMISTRY
C	ACYCLIC OR CARBOCYCLIC COMPOUNDS
51	Preparation of carboxylic acids or their salts, halides or anhydrides
347	by reactions not involving formation of carboxyl groups
353	by isomerisation; by change of size of the carbon skeleton

C	CHEMISTRY; METALLURGY
07	ORGANIC CHEMISTRY
C	ACYCLIC OR CARBOCYCLIC COMPOUNDS
403	Derivatives of cyclohexane or of a cyclohexene ; or of cyclohexadiene; , having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene ; or cyclohexadiene; rings, e.g. vitamin A, beta-carotene, beta-ionone
20	having side-chains substituted by carboxyl groups ; or halides, anhydrides, or (thio)esters thereof

C	CHEMISTRY; METALLURGY
07	ORGANIC CHEMISTRY
D	HETEROCYCLIC COMPOUNDS
309	Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
32	having two double bonds between ring members or between ring members and non-ring members