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:
Aug. 03, 1993
Filed:
Jun. 05, 1990
Yoshifumi Watanabe, Tokyo, JP;
Hiroyuki Usui, Tokyo, JP;
Toshiro Shibano, Tokyo, JP;
Tsuyoshi Tanaka, Tokyo, JP;
Yoshiyuki Morishima, Tokyo, JP;
Megumi Yasuoka, Tokyo, JP;
Daiichi Pharmaceutical Co., Ltd., Tokyo, JP;
Abstract
A heterocyclic compound represented by formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom, an alkyl group, an aryl group which may be substituted with one or more substituents selected from the group consisting of a halogen atom, an alkoxy group, an alkyl group and a trihalogenomethyl group; .lambda. represents 0 or 1; ring A represents a 6 membered heterocyclic ring containing the nitrogen atom shared with the triazine ring and which may contain one or more double bonds; Y represents a substituted or unsubstituted alkylene group having 1 to 15 carbon atoms; and Q represents a group represented by formula (II): ##STR2## wherein R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are represented by substituents disclosed herein; or salt thereof, and intermediates therefor are described. The compound of formula (I) or salt thereof exhibit selective serotonin 2-receptor antagonistic activity and are useful for the prevention or treatment of circulatory diseases, e.g., ischemic heart diseases, cerebral vessel disturbances, and peripheral circulation disturbances.