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. 31, 1983
Filed:
Oct. 24, 1980
Applicant:
Inventor:
David F Corbett, Reigate, GB;
Assignee:
Beecham Group Limited, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2602 / ;
Abstract
The present invention provides a process for the preparation of a compound of the formula (O): ##STR1## wherein R.degree. is SCH.sub.2 CH.sub.2 NH.sub.2 which process comprises the reaction of a cleavable ester of a compound of the formula (O) wherein R.degree. is H with an optionally protected compound XCH.sub.2 CH.sub.2 NH.sub.2 wherein X is a displaceable group.