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, 1988
Filed:
Jun. 24, 1986
Applicant:
Inventors:
Hiroyuki Imaizumi, Toyama, JP;
Takihiro Inaba, Namerikawa, JP;
Seishi Morita, Toyama, JP;
Ryuko Takeno, Toyama, JP;
Yoshiharu Murotani, Toyama, JP;
Hirohiko Fukuda, Toyama, JP;
Junichi Yoshida, Toyama, JP;
Kiyoshi Tanaka, Toyama, JP;
Shuntaro Takano, Toyama, JP;
Isamu Saikawa, Toyama, JP;
Assignee:
Toyama Chemical Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
540222 ; 540225 ; 540227 ;
Abstract
The invention relates to a process for producing a cephalosporin of the formula ##STR1## by reacting the compound ##STR2## with the compound ##STR3## in the presence of boron trifluoride or a complex thereof.