Process for preparing 1-(mercaptomethyl)cyclopropaneacetic acid, a useful intermediate in the preparation of montelukast and salts thereof

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Aug 11, 2009
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Sep 6, 2007
app pub date
Feb 1, 2007
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Feb 2, 2006

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Abstract

The present invention provides a novel montelukast intermediate and a simple and straightforward process for preparing it.According to the present invention, by using this intermediate and the process, essentially as described herein, montelukast acid and salts thereof are obtained.

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CHEMAGIS LTD	ISRAEL BRAQUE BONET AIRPORT CITY NORTHERN DISTRICT

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C07C:ACYCLIC OR CARBOCYCLIC COMPOUNDS

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Inventor Name	Address	# of filed Patents	Total Citations
Brand, Michael	RaAnana, IL	76	1136
Kaspi, Joseph	Givatayim, IL	64	303
Wang, Yanling	Shanghai, CN	18	589
Wang, Yuang	Shanghai, CN	2	1

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Process for preparing 1-(mercaptomethyl)cyclopropaneacetic acid, a useful intermediate in the preparation of montelukast and salts thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

11700867

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PATENT NO	7572930
APP PUB NO	20070208177A1
SERIAL NO	11700867
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity Expired	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
August 11, 2009	US,7572930,B2 US7572930B2	GRANTED PATENT AS SECOND PUBLICATION
September 06, 2007	US,20070208177,A1 US20070208177A1	FIRST PUBLISHED PATENT APPLICATION

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11700867

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