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. 22, 1991
Filed:
Nov. 21, 1989
Applicant:
Inventors:
Yoshiyuki Matsuoko, Tokyo, JP;
Kunio Hosaka, Tokyo, JP;
Shigefumi Takeda, Tokyo, JP;
Hiroshi Mitsuhashi, Tokyo, JP;
Assignee:
Tsumura & Co., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549436 ;
Abstract
The present invention relates to a novel biphenyl derivative having a liver ailment-moderating action, which is effective for the remedy of liver diseases such as acute hepatitis and chronic hepatitis, a process for the preparation of this derivative and a liver ailment-moderating agent comprising this derivative as an active ingredient. Moreover, the present invention relates to a compound valuable as the intermediate compound for the synthesis of this derivative and a process for efficiently preparing this intermediate compound.