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:
Feb. 06, 1990
Filed:
Feb. 08, 1988
Applicant:
Inventors:
Sumiro Isoda, Tokyo, JP;
Shunzo Aibara, Tokyo, JP;
Tamotsu Miwa, Tokyo, JP;
Hiroyuki Fujiwara, Tokyo, JP;
Shuichi Yokohama, Tokyo, JP;
Hiroo Matsumoto, Tokyo, JP;
Assignee:
Daiichi Seiyaku Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; A61K / ;
U.S. Cl.
CPC ...
544251 ; 544255 ; 544278 ; 548138 ; 548199 ;
Abstract
Novel tricyclic triazolopyrimidine compounds represented by formula (I) shown in the specification and physiologically acceptable salts thereof are disclosed. These compounds have an excellent anti-allergic activity and are useful for treatment and prophylaxis of allergic diseases.