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. 27, 1987
Filed:
Dec. 04, 1984
Isao Yamatsu, Kawaguchi, JP;
Yuichi Inai, Tokyo, JP;
Shinya Abe, Tokyo, JP;
Hideaki Watanabe, Aichi, JP;
Toshiji Igarashi, Tokorozawa, JP;
Hiroyuki Shiojiri, Sayama, JP;
Yoshio Tanabe, Saitama, JP;
Kumiko Hara, Tokyo, JP;
Eisai Co., Ltd., Tokyo, JP;
Abstract
This invention relates to polyprenylcarboxylic acid amides represented by the following general formula (I): ##STR1## wherein n is an integer of from 1 to 4, a and b stand for hydrogen atoms or a direct valence bond between the carbon atoms to which a and b are attached, c and d stand for hydrogen atoms or a direct valence bond between the carbon atoms to which c and d are attached, and R.sub.1 and R.sub.2 stand for a hydrogen atom, a lower alkyl group, a phenyl group which may be substituted or an aralkyl group which may be substituted, or R.sub.1 and R.sub.2 form, together with the adjacent nitrogen atom, a 5- or 6-membered heterocyclic ring which may contain other hetero atoms or may be substituted, and also to a process for the preparation of said polyprenylcarboxylic acid amide and to a pharmaceutical composition for treating liver dysfunction comprising said polyprenylcarboxylic acid amide.