Heterocyclic coumarin derivatives, their preparation and pharmaceutical compositions comprising said derivatives
申请人:BEECHAM GROUP PLC
公开号:EP0010392A1
公开(公告)日:1980-04-30
A compound of formula (I):
and pharmaceutically acceptable salts thereof, wherein R is hydrogen or an alkyl group containing up to 6 carbon atoms; X is a bond or oxygen; Y is -(CH2)n -where n is 0 or an integer from 1 to 5 wherein one carbon atom not bound to the nitrogen atom may be optionally substituted with a hydroxy group; and Z is hydrogen or halogen; e.g. 1-(4-chlorobenzyl) -4-[3-(4-hydroxy-3-nitro- coumarin-7-yloxy) propyl] piperazine; may be used in the prophylaxis and treatment of diseases whose symptoms are controlled by the mediators of the allergic response, for example asthma, hay-fever, rhinitis and allergic eczema.
A compound of formula (I) is prepared by reacting a compound of formula (II) or a salt thereof
wherein R, X, Y, and Z are defined with respect to formula (i) with a nitrating agent
式(I)化合物
及其药学上可接受的盐类,其中 R 是氢或最多含有 6 个碳原子的烷基;X 是键或氧;Y 是-(CH2)n -其中 n 是 0 或 1 至 5 的整数,其中未与氮原子结合的一个碳原子可任选被羟基取代;Z 是氢或卤素;例如:1-(4-氯苄基)-4-[3-(4-羟基-3-硝基香豆素-7-氧基)丙基]哌啶。g. 1-(4-氯苄基)-4-[3-(4-羟基-3-硝基香豆素-7-氧基)丙基]哌嗪;可用于预防和治疗其症状受过敏反应介质控制的疾病,例如哮喘、花粉症、鼻炎和过敏性湿疹。
式(I)化合物是通过式(II)化合物或其盐反应制备的
其中 R、X、Y 和 Z 的定义见式 (i)。