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:
Oct. 23, 2012
Filed:
Nov. 20, 2007
Andrew Gnanaprakasam, Chennai, IN;
Nagappan Arumugam, Chennai, IN;
Palanisamy Senthilkumar Udayampalayam, Chennai, IN;
Pandi Suresh Pandian, Chennai, IN;
Venugopal Sivasankaran, Chennai, IN;
Ganapathy Veeramani, Chennai, IN;
Henry Syril Sudhan, Chennai, IN;
Gollapalli Venkateswara Rao, Secundrabad, IN;
Andrew Gnanaprakasam, Chennai, IN;
Nagappan Arumugam, Chennai, IN;
Palanisamy Senthilkumar Udayampalayam, Chennai, IN;
Pandi Suresh Pandian, Chennai, IN;
Venugopal Sivasankaran, Chennai, IN;
Ganapathy Veeramani, Chennai, IN;
Henry Syril Sudhan, Chennai, IN;
Gollapalli Venkateswara Rao, Secundrabad, IN;
Orchid Chemicals & Pharmaceuticals Limited, Chennai, IN;
Abstract
A process for the preparation of a carbapenem of formula (I): in amorphous form wherein R represents hydrogen or COOM and M represents hydrogen or sodium the process including condensing a compound of formula (II): wherein P' denotes a carboxy protecting group, with a compound of formula (III): wherein P″ denotes a carboxy protecting group, in the presence of a base to yield a compound of formula (IV): deprotecting both the protecting groups in the compound of formula (IV) in the presence or absence of a sodium ion source, a solvent and in the presence or absence of CO, gas, extracting the product into an aqueous medium, quenching the aqueous layer of into an alcohol at a temperature, and isolating the carbapenem compound of formula (I) in amorphous form.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile