申请人:Eisai Co., Ltd.
公开号:EP1057830A1
公开(公告)日:2000-12-06
The invention provides a novel heterocyclic ring condensed benzothiazine compound which is effective for prevention or remedy of disease, in which histamine, leukotriene and the like participate. The heterocyclic ring condensed benzothiazine compound of the present invention or a pharmacologically acceptable salt thereof is effective for prevention or remedy of disease, in which a chemical mediator, such as histamine, leukotriene and the like, participate, for example, asthma, allergic coryza, atopic dermatitis, hives, hay fever, gastrointestinal allergy, food allergy and the like. Further, the heterocyclic ring condensed benzothiazine compound of the present invention, its pharmacologically acceptable salt or hydrates thereof is represented by the following formula:
In the formula, the ring Het represents an unsaturated heterocyclic ring; R1 and R2 are the same as or different from each other, and each represents halogen atom, a lower alkyl group that may be substituted with a halogen atom, a lower alkoxy group that may be substituted with a halogen atom, a lower alkyl lower alkoxy group, cyano group; D represents a lower alkylene group and the like that may have a substituent; Q represents, for example, the formula -NR20R21 (in the formula, R20 and R21 are the same as or different from each other, and each represents hydrogen atom, a lower alkyl group that may be substituted with a halogen atom, an aryl group that may have a substituent, an arylalkyl group that may have a substituent, a heteroaryl group that may have a substituent or a heteroarylalkyl group that may have a substituent, or R20 and R21 may form a 3- to 8-membered ring along with the nitrogen atom to which they are bound); and x represents an integer of from 1 to 2.
本发明提供了一种新型杂环缩合苯并噻嗪化合物,可有效预防或治疗组胺、白三烯等参与的疾病。本发明的杂环缩合苯并噻嗪化合物或其药理学上可接受的盐可有效预防或治疗化学介质(如组胺、白三烯等)参与的疾病,如哮喘、过敏性苍白喉、特应性皮炎、荨麻疹、花粉症、胃肠道过敏、食物过敏等。此外,本发明的杂环缩合苯并噻嗪化合物、其药理学上可接受的盐或其水合物由下式表示:
式中,环 Het 代表不饱和杂环;R1 和 R2 彼此相同或不同,各自代表卤原子、可被卤原子取代的低级烷基、可被卤原子取代的低级烷氧基、低级烷基低级烷氧基、氰基;D 代表可具有取代基的低级亚烷基等;Q 代表例如式-NR20R21(式中,R20 和 R21 彼此相同或不同,且各自代表氢原子、可被卤素原子取代的低级烷基、可具有取代基的芳基、可具有取代基的芳烷基、可具有取代基的杂芳基或可具有取代基的杂芳基烷基,或 R20 和 R21 可与它们结合的氮原子一起形成 3 至 8 元环);x 代表 1 至 2 的整数。