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:
Aug. 14, 1990
Filed:
Jun. 23, 1989
Applicant:
Inventors:
Donald Hou, Verona, NJ (US);
Yee-Shing Wong, Clifton, NJ (US);
Dinesh Gala, East Brunswick, NJ (US);
Martin Steinman, Livingston, NJ (US);
Assignee:
Schering-Plough Corp., Kenilworth, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07F / ;
U.S. Cl.
CPC ...
540358 ;
Abstract
There is disclosed a compound represented by the formula ##STR1## wherein each P is hydrogen or a hydroxy protecting group and R and R' are each the same and are hydrogen, ##STR2## wherein R' is lower alkyl and R'' is a carboxy protecting group. The compounds are useful as intermediates for preparing penems.