The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 25, 1997
Filed:
May. 12, 1995
Mahadevan Bhupathy, Edison, NJ (US);
James M McNamara, Rahway, NJ (US);
Daniel R Sidler, Mansfield, PA (US);
Ralph P Volante, Cranbury, NJ (US);
James Bergan, Rahway, NJ (US);
Merck & Co., Inc., Rahway, NJ (US);
Abstract
The present invention relates to a process for the preparation of a compound of formula (I) or a sodium salt thereof ##STR1## wherein HET is 7-chloroquinolin-2-yl or 6,7-difluoroquinolin-2-yl, which comprises: reacting the dilithium dianion of 1-(mercaptomethyl)cyclopropaneacetic acid with a compound of formula (II) ##STR2## wherein HET is as defined above and L is arylsulfonyl or alkylsulfonyl. The invention further provides the dicyclohexylamine salt of a compound of formula (I).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile