A (2-substituted oxyphenyl)alkanamide derivative or a salt thereof expressed by the following Formula (I):
1
wherein one of A and B is a hydrocarbon group of C
3-30
expressed by R
1
and the other is —(CH
2
)n-NR
2
R
3
; Z is —CO— or —CONR
6
—; R
2
and R
3
individually represent H, lower alkyl or benzyl, or —NR
2
R
3
may be a heterocycle having 3-7 members; wherein —CONR
5
—(CH
2
)n—NR
2
R
3
or —CONR
6
—(CH
2
)n-NR
2
R
3
may be the following Group (II):
2
wherein ring Y is a heterocycle of 6 or 7 members; R
4
is selected from the group consisting of H, halogen, lower alkyl, lower acyl and etc; R
5
and R
6
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Group(II):
其中环Y是6或7个成员的杂环; R4选择自H,卤素,低烷基,低酰基等组成的群; R5和R6分别是H,低烷基,低酰基或低烷基
氨基,或可以成为所述Group(II)的一部分; 1为0或1; m为1或2; n为0-5的整数。该(2-取代氧基苯基)烷酰胺衍
生物或其盐具有优异的促进毛发生长和再生的作用,可用于哺乳动物,特别是人类的脱发护理,改善或预防。