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. 18, 1997
Filed:
Mar. 16, 1995
Chikara Murakata, Hachioji, JP;
Junichi Watanabe, Sunto-gun, JP;
Yutaka Saitoh, Machida, JP;
Yukimasa Shiotsu, Tokyo, JP;
Takako Shiraki, Machida, JP;
Fumihiko Kanai, Machida, JP;
Tatsuya Tamaoki, Machida, JP;
Shiro Akinaga, Sunto-gun, JP;
Masami Okabe, Mishima, JP;
Kyowa Hakko Kogyo Co., Ltd., Tokyo, JP;
Abstract
Disclosed is an indolocarbazole derivative represented by the following formula (I), or a pharmaceutically acceptable salt thereof: ##STR1## [wherein R.sup.1 represents substituted or unsubstituted lower alkyl, R.sup.2 represents hydrogen, substituted or unsubstituted lower alkyl, R.sup.3 and R.sup.4 are the same or different, and represent hydrogen, nitro, NR.sup.5 R.sup.6, OR.sup.9, substituted or unsubstituted lower alkyl, substituted or unsubstituted lower alkenyl, or CH.dbd.NNR.sup.10 R.sup.11, W represents two hydrogen atoms or oxygen, and Me represents methyl, provided that when R.sup.1 is unsubstituted lower alkyl, R.sup.3 and R.sup.4 are not simultaneously hydrogen.