Disclosed is a compound represented by Formula (I) or a pharmaceutically acceptable salt thereof:
wherein R1 is
1: a C3-8 cycloalkyl C1-4 alkyl group,
2: a C7-14 aralkyl group, in which the aryl moiety thereof is optionally substituted with the same or different 1 to 3 groups selected from the group consisting of:
(a) halogen,
(b) C1-4 alkyl, which is optionally substituted with 1 to 3 fluorine atoms,
(c) C1-4 alkoxy, which is optionally substituted with 1 to 3 fluorine atoms, and
(d) C1-4 alkylcarbonyl, which is optionally substituted with C1-4 alkoxy,
3: a five- to ten-membered heteroaryl-C1-4 alkyl group, in which the heteroaryl moiety thereof is optionally substituted with the same or different 1 to 3 groups selected from the group consisting of:
(a) halogen, and
(b) C1-4 alkyl, or
4: a C6-10 aryl C2-6 alkenyl group; and
R2 is a cyano group or a nitro group.
本发明公开了一种由式 (I) 表示的化合物或其药学上可接受的盐:
其中 R1 是
1:C3-8 环烷基 C1-4 烷基、
2:C7-14 芳烷基,其中芳基可任选被相同或不同的 1 至 3 个基团取代,这些基团选自由以下组成的组:
(a) 卤素
(b) C1-4 烷基,可任选被 1 至 3 个
氟原子取代、
(c) C1-4 烷氧基,可任选被 1 至 3 个
氟原子取代,和
(d) C1-4 烷基羰基,可任选被 C1-4 烷氧基取代、
3:五至十元杂芳基-C1-4 烷基,其中的杂芳基可任选被相同或不同的 1 至 3 个基团取代,这些基团选自由以下组成的组:
(a) 卤素,和
(b) C1-4 烷基,或
4:C6-10 芳基 C2-6 烯基;以及
R2 是
氰基或硝基。