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:
May. 13, 1997
Filed:
Nov. 08, 1995
Applicant:
Inventors:
Assignee:
Tanabe Seiyaku Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ;
U.S. Cl.
CPC ...
540350 ; 548544 ;
Abstract
An improved process for preparing a 4-mercaptopyrrolidine compound [I]: ##STR1## wherein R is H, lower alkyl or lower alkanoyl, R.sup.1 is H or SH-protecting group, and X is O or S, which comprises reacting halogenobutyric acid compound [VI], or a salt thereof, with amine compound [VII], or a salt thereof, and if necessary, followed by thiocarbonylating the product and/or removing the protecting group, said 4-mercaptopyrrolidine compound [I] being useful as intermediate for carbapenem antibacterial agents.