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:
Jun. 06, 1989
Filed:
Jun. 17, 1987
Applicant:
Inventors:
Katsuaki Miyaji, Funabashi, JP;
Kazutaka Arai, Funabashi, JP;
Yoshio Ohara, Funabashi, JP;
Yasuhiro Takahashi, Funabashi, JP;
Assignee:
Nissan Chemical Industries Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549319 ; 549318 ;
Abstract
A compound having the formula: ##STR1## wherein R is a hydroxyl-protecting group, X is a hydrogen atom, CO.sub.2 R' (wherein R' is a hydrogen atom or an alkyl group having from 1 to 7 carbon atoms, or CO.sub.2 R' is a salt of CO.sub.2 H), or a group of the formula: ##STR2## and when X is a hydrogen atom, Y is CO.sub.2 R' (wherein R' is as defined above) or a group of the formula: ##STR3## and when X is CO.sub.2 R' or the group of the formula (i), Y is a hydrogen atom.