Quinazolin-4-one derivatives, their preparation and their use as hair growth promoters or in external compositions for skin
申请人:SHISEIDO COMPANY LIMITED
公开号:EP0903344A1
公开(公告)日:1999-03-24
A quinazolinone derivative or a salt thereof expressed by the following Formula (I);
wherein each of A and B is R1 or -(CH2)n-NR2R3; wherein R1 represents a hydrocarbon group of C10-30; wherein R2 and R3 individually represent a hydrogen atom, a lower alkyl group, a phenyl group, or a benzyl group, or together represent a heterocyclic ring having 3-7 members; and n represents an integer of 1-5; wherein when A is R1, B is -(CH2)n-NR2R3 and when A is -(CH2)n-NR2R3, B is R1; and wherein R4 is selected from the group consisting of a hydrogen atom, a halogen atom, a lower alkyl group, a lower acyl group, a nitro group, a cyano group, an amino group, a lower alkoxycarbonyl group, a lower alkylamino group, a lower alkoxy group, a lower acyloxy group, a carbamoyl group, a lower alkylcarbamoyl group, and a lower acylamino group. The quinazolinone derivative or the salt thereof has excellent hair growth and regrowth promoting effects, which are useful for care, improvement or prevention of hair loss in mammals and, in particular, in humans.
由下式(I)表示的一种喹唑啉酮衍生物或其盐;
其中 A 和 B 各自为 R1 或-(CH2)n-NR2R3;其中 R1 代表 C10-30 的烃基;其中 R2 和 R3 单独代表氢原子、低级烷基、苯基或苄基,或共同代表具有 3-7 个成员的杂环;n 代表 1-5 的整数;其中当 A 为 R1 时,B 为-(CH2)n-NR2R3,当 A 为-(CH2)n-NR2R3 时,B 为 R1;其中 R4 选自由氢原子、卤素原子、低级烷基、低级酰基、硝基、氰基、氨基、低级烷氧基羰基、低级烷基氨基、低级烷氧基、低级酰氧基、氨基甲酰基、低级烷基氨基甲酰基和低级酰氨基组成的组。喹唑啉酮衍生物或其盐具有良好的促进毛发生长和再生的效果,可用于护理、改善或预防哺乳动物,尤其是人类的脱发。