Process for preparing 1-(mercaptomethyl)cyclopropaneacetic...

Details Process for preparing 1-(mercaptomethyl)cyclopropaneacetic... Process for preparing 1-(mercaptomethyl)cyclopropaneacetic...

2007-02-01

2009-08-11

Shameem, Golam M (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitriles

C558S303000

Reexamination Certificate

active

07572930

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.

REFERENCES:
patent: 5614632 (1997-03-01), Bhupathy et al.
patent: 6512140 (2003-01-01), Liu et al.
patent: 480717 (1992-04-01), None
patent: WO 2007/088545 (2007-08-01), None

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