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. 15, 1980
Filed:
Jun. 07, 1978
Applicant:
Inventors:
Masaru Iwanami, Yokohama, JP;
Tetsuya Maeda, Urawa, JP;
Yoshinobu Nagano, Niiza, JP;
Masaharu Fujimoto, Tokyo, JP;
Noriaki Nagano, Ageo, JP;
Atsuki Yamazaki, Ichikawa, JP;
Kazaharu Tamazawa, Saitama, JP;
Kiyoshi Murase, Urawa, JP;
Tadao Shibanuma, Asaka, JP;
Assignee:
Yamanouchi Pharmaceutical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549 89 ; 549 59 ; 424246 ; 424271 ; 544 21 ; 544238 ; 544335 ; 546284 ; 2602391 ; 548142 ; 548187 ; 548213 ; 548255 ; 548251 ; 548229 ;
Abstract
Substituted 1,3-dithietane-2-carboxylic acid derivatives useful as intermediates for the preparation of highly effective penicillin and cephalosporin derivatives and the preparation thereof.