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:
Jan. 11, 1983
Filed:
Oct. 10, 1978
Kazuhiko Okamura, Yamato, JP;
Shoji Hirata, Miyagi, JP;
Yasushi Okumura, Kamakura, JP;
Yasuo Fukagawa, Kamakura, JP;
Yasutaka Shimauchi, Ninomiya, JP;
Tomoyuki Ishikura, Chigasaki, JP;
Kageaki Kouno, Tokyo, JP;
Joseph Lein, Fayetteville, NY (US);
Sanraku-Ocean Co., Ltd., Tokyo, JP;
Abstract
A novel antibiotic substance of the formula ##STR1## wherein R.sub.1 is CH.sub.3 and R.sub.2 is --CH.sub.2 --CH.sub.2 -- or R.sub.1 is H and R.sub.2 is --CH.dbd.CH--; and R.sub.3 represents hydrogen, lower alkyl or triphenylmethyl, and including the salts of the compound of formula (I) wherein R.sub.3 is hydrogen, said antibiotic substance having strong antibiotic activity and .beta.-lactamase inhibiting effect, and a method for producing the same by aerobic cultivation of Streptomyces A271.