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:
Jun. 15, 1982
Filed:
May. 18, 1981
Applicant:
Inventors:
Stjepan Kukolja, Carmel, IN (US);
Janice L Pfeil, Indianapolis, IN (US);
Assignee:
Eli Lilly and Company, Indianapolis, IN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
544 90 ;
Abstract
Azetidinone alcohol disulfides are synthesized by reduction of the corresponding aldehydes. The azetidinone alcohol disulfides are the substrates for a process which cyclizes these compounds to 1-oxa .beta.-lactam compounds, employing a cyclizing reagent chosen from the class consisting of divalent mercury salts or tri-valent phosphine compounds. The 1-oxa .beta.-lactam compounds produced by this process are intermediates in the synthesis of 1-oxa .beta.-lactam antibiotics.
Kukolja, Stjepan. (1982). Process for cyclization (U.S. Patent No. 4335240). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4335240
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile