The invention relates to compounds of formula I:
or pharmaceutically acceptable acid addition salts thereof, where; R
1
is C
1
-C
6
alkyl, substituted C
1
-C
6
alkyl, C
3
-C
7
cycloalkyl, substituted C
3
-C
7
cycloalkyl, C
3
-C
7
cycloalkyl-C
1
-C
3
alkyl, substituted C
3
-C
7
cycloalkyl-C
1
-C
3
alkyl, phenyl, substituted phenyl, heterocycle, or substituted heterocycle;
R
2
is hydrogen, C
1
-C
3
alkyl, C
3
-C
6
cycloalkyl-C
1
-C
3
alkyl, or a group of formula II;
R
3
is hydrogen or C
1
-C
3
alkyl;
R
4
is hydrogen, halo, or C
1
-C
3
alkyl;
R
5
is hydrogen or C
1
-C
3
alkyl;
R
6
is hydrogen or C
1
-C
6
alkyl; and
n is an integer from 1 to 6 inclusively.
The compounds of the present invention are useful for activating 5-HT
1F
receptors, inhibiting neuronal protein extravasation, and for the treatment or prevention of migraine in a mammal. The present invention also relates to a process for the synthesis of intermediates in the synthesis of compounds of Formula I.
本发明涉及I式化合物:
或其药学上可接受的酸加合物,其中:
R1是C1-C6烷基,取代的C1-C6烷基,C3-C7
环烷基,取代的C3-C7
环烷基,C3-C7
环烷基-C1-C3烷基,取代的C3-C7
环烷基-C1-C3烷基,
苯基,取代的
苯基,杂环或取代的杂环;
R2是
氢,C1-C3烷基,C3-C6
环烷基-C1-C3烷基或II式的基团;
R3是
氢或C1-C3烷基;
R4是
氢,卤素或C1-C3烷基;
R5是
氢或C1-C3烷基;
R6是
氢或C1-C6烷基;
n是1到6的整数。
本发明的化合物对于激活5-HT1F受体,抑制神经元蛋白外渗以及用于哺乳动物偏头痛的治疗或预防是有用的。本发明还涉及一种在化合物I的合成
中间体合成的过程。