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:
Jul. 03, 1979
Filed:
May. 10, 1977
Hirotada Yamada, Nishinomiya, JP;
Kousaku Okamura, Takarazuka, JP;
Hisao Tobiki, Kobe, JP;
Norihiko Tanno, Ashiya, JP;
Kozo Shimago, Toyonaka, JP;
Takenari Nakagome, Nishinomiya, JP;
Toshiaki Komatsu, Takarazuka, JP;
Akio Izawa, Kawanishi, JP;
Hiroshi Noguchi, Nishinomiya, JP;
Kenji Irie, Takarazuka, JP;
Yasuko Eda, Toyonaka, JP;
Sumitomo Chemical Company, Limited, Osaka, JP;
Abstract
A cephalosporin derivative of the formula (I), ##STR1## wherein A is a mono- or polycyclic heteroaromatic ring, which contains at least one nitrogen atom as a hetero atom and which may be substituted with one or more substituents; R is a phenyl group substituted with at least one substituent selected from the group consisting of an amino group, a hydroxy group, a ureido group and a hydroxymethyl group; and X is an --OCOCH.sub.3 group or an --S-Het group in which Het is a 5- or 6-membered heterocyclic ring containing one to four hetero atoms selected from the group consisting of nitrogen, oxygen and sulfur atoms which may be substituted with one or more substituents, and the non-toxic pharmaceutically acceptable salts thereof which are useful as an antimicrobial and prepared by the reaction of a compound of the formula (II),