A (2-substituted oxyphenyl)alkanamide derivative or a salt thereof expressed by the following Formula (I):
wherein one of A and B is a hydrocarbon group of C3-30 expressed by R1 and the other is —(CH2)n—NR2R3; Z is —CO— or —CONR6—; R2 and R3 individually represent H, lower alkyl or benzyl, or —NR2R3 may be a heterocycle having 3-7 members; wherein —CONR5—(CH2)n—NR2R3 or —CONR6—(CH2)n—NR2R3 may be the following Group (D):
wherein ring Y is a heterocycle of 6 or 7 members; R4 is selected from the group consisting of H, halogen, lower alkyl, lower acyl and etc; R5 and R6 are individually H, lower alkyl, lower acyl or lower alkylcarbamoyl, or may form a part of said Group(II); 1 is 0 or 1; m is 1 or 2; and n is an integer of 0-5. The (2-substituted oxyphenyl)alkanamide 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 human.
以下是由以下公式(I)表示的A(2-取代氧基苯基)烷酰胺衍
生物或其盐:
其中A和B中的一个是由R1表示的C3-30的烃基,另一个是-(
CH2)n-NR2R3; Z是-CO-或-CONR6-; R2和R3分别表示H,低烷基或苄基,或-NR2R3可以是具有3-7个成员的杂环;其中-CONR5-( )n-NR2R3或-CONR6-( )n-NR2R3可以是以下组(D):
其中环Y是6个或7个成员的杂环; R4选自H,卤素,低烷基,低酰基等组; R5和R6分别为H,低烷基,低酰基或低烷基
氨基酰基,或者可以成为所述组(II)的一部分; 1为0或1; m为1或2; n是0-5的整数。该(2-取代氧基苯基)烷酰胺衍
生物或其盐具有出色的促进头发生长和再生的效果,可用于哺乳动物的脱发护理,改善或预防,特别是在人类中。