(Piperidinylalkyl)quinazoline derivatives, process for their preparation and pharmaceutical compositions containing them
申请人:JANSSEN PHARMACEUTICA N.V.
公开号:EP0013612A2
公开(公告)日:1980-07-23
Quinazoline derivatives of the formula
wherein
Ar is an aryl
× is>=O
wherein Ra is hydrogen or alkyl and and q is 2 or 3; R is hydorgen, hydroxy and alkyl;
Alk is an alkylene chain having from 1 to4 carbon atoms and 0 is a quinazolinyl radical, the 1-,2-,3- or 4-position of which is connected with the alkylene side chain, said quinazohnyl radical bearing in one or both of its 2- and 4-positions a carbonyl or thiocarbonyl group, wherein the benzene ring of said quinazolinyl radical is optionally substituted with 1 to 3 substituents each independently selected from the group consisting of halo, alkyl, alkyloxy, trifluoromethyl, nitro and cyano, and wherein the pyrimidino ring of said quinazolinyl radical may be partly or fully saturated, said pyrimidino ring being optionally substituted with 1 to 3 substituents independently selected from the group consisting of alkyl, aryl and aryl(lower alkyl);
wherein said aryl as used in the definition of said Ar and of said Q is a member selected from the group consisting of phenyl, substituted phenyl, thienyl and pyridinyl, wherein said substituted phenyl has from 1 to 3 substituents each independently selected from the group consisting of halo, lower alkyl, lower alkyloxy, trifluoromethyl and amino. These derivatives are serotonin antagagonists. Further are described compounds of the formula
(Q. Alk and R have the same meaning as above), R, and R, being hydrogen, halogen, alkyl, alkoxy, CF, and amino, having the same activity.
式中的喹唑啉衍生物
式中
Ar 是芳基
× >=O
其中 Ra 是氢或烷基,q 是 2 或 3;R 是氢根、羟基和烷基;
Alk 是具有 1 至 4 个碳原子的亚烷基链,0 是喹唑啉基,其 1-、2-、3-或 4-位与亚烷基侧链相连,所述喹唑啉基在其 2-和 4-位中的一个或两个位置上带有羰基或硫代羰基,其中所述喹唑啉基的苯环任选被 1 至 3 个取代基取代,每个取代基独立地选自由卤代、烷基、烷氧基、三氟甲基、硝基和氰基,其中所述喹唑啉基的嘧啶环可部分或完全饱和,所述嘧啶环可任选被 1 至 3 个各自独立选自烷基、芳基和芳基(低级烷基)的取代基取代;
其中,在所述 Ar 和所述 Q 的定义中使用的所述芳基选自苯基、取代苯基、噻吩基和吡啶基组成的组,其中所述取代苯基具有 1 至 3 个各自独立选自卤代、低级烷基、低级烷氧基、三氟甲基和氨基组成的组的取代基。这些衍生物是血清素拮抗剂。此外,还描述了如下式子的化合物
(Q.烷基和 R 的含义同上),R 和 R 为氢、卤素、烷基、烷氧基、CF 和氨基,具有相同的活性。