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:
Apr. 05, 1983
Filed:
Aug. 09, 1982
Sigeru Torii, Akaiwa, JP;
Hideo Tanaka, Okayama, JP;
Junzo Nokami, Okayama, JP;
Takashi Shiroi, Okayama, JP;
Norio Saito, Itano, JP;
Michio Sasaoka, Okayama, JP;
Otsuka Kagaku Yakuhin Kabushiki Kaisha, Osaka, JP;
Abstract
This invention provides a process for preparing an oxazolineazetidinone derivative represented by the formula ##STR1## (wherein R.sup.1 represents hydrogen atom, alkyl group, alkenyl group, substituted or unsubstituted aralkyl group, substituted or unsubstituted aryl group, or substituted or unsubstituted aryloxymethyl group, R.sup.2 represents free or protected carboxyl group and R.sup.3 represents hydrogen atom or methoxy group) from a penicillin derivative represented by the formula ##STR2## wherein R.sup.1, R.sup.2 and R.sub.3 are as defined above.