申请人:Reborna Biosciences, Inc.
公开号:EP3816160A1
公开(公告)日:2021-05-05
A prophylactic or therapeutic agent for spinal muscular atrophy according to the present invention includes a compound represented by the formula (I) or a salt thereof:
wherein:
W1, W2, and W3 are each independently selected from the group consisting of C-R2, C-R3, C-Rc, and C-Rd, and are defined by one of the followings (i) to (iv):
(i) when W3 is C-R2, then W1 is C-R3, W2 is C-Rc or N, and R1 is a hydrogen atom;
(ii) when W3 is C-R3, then W1 is C-R2, W2 is C-Rc or N, and R1 is a hydrogen atom, C1-8 alkyl, or C1-8 alkoxy;
(iii) when W1 is C-R2, then W2 is C-Rc or N, W3 is C-Rd, and R1 is an aliphatic heterocycle containing one or more nitrogen atoms, the aliphatic heterocycle being optionally substituted with a non-aromatic substituent; and
(iv) when W2 is C-R2, W1 is C-Rc, W3 is C-Rd, and R1 is an aliphatic heterocycle containing one or more nitrogen atoms, the aliphatic heterocycle being optionally substituted with a non-aromatic substituent;
R2 is a 6- or more membered aromatic ring optionally substituted with a non-aromatic substituent;
R3 is an aliphatic heterocycle containing one or more nitrogen atoms, the aliphatic heterocycle being optionally substituted with a non-aromatic substituent;
Q1 is selected from C-Ra and N;
Q2 is selected from C-Rb and N; and
Ra, Rb, Rc, and Rd are each independently selected from the group consisting of a hydrogen atom, halogen, C1-8 alkyl, C1-8 alkoxy, and a cyano group.
根据本发明,脊髓性肌萎缩症的预防或治疗剂包括由式(I)代表的化合物或其盐:
其中
W1、W2 和 W3 各自独立地选自由 C-R2、C-R3、C-Rc 和 C-Rd 组成的组,并由以下(i)至(iv)之一定义:
(i) 当 W3 为 C-R2 时,W1 为 C-R3,W2 为 C-Rc 或 N,R1 为氢原子;
(ii) 当 W3 为 C-R3 时,则 W1 为 C-R2,W2 为 C-Rc 或 N,且 R1 为氢原子、C1-8 烷基或 C1-8 烷氧基;
(iii) 当 W1 是 C-R2,则 W2 是 C-Rc 或 N,W3 是 C-Rd,且 R1 是含有一个或多个氮原子的脂族杂环,该脂族杂环任选被非芳香族取代基取代;以及
(iv) 当 W2 为 C-R2、W1 为 C-Rc、W3 为 C-Rd 且 R1 为含有一个或多个氮原子的脂族杂环时,该脂族杂环可任选被非芳香族取代基取代;
R2 是一个 6 个或多个成员的芳香环,可任选被一个非芳香族取代基取代;
R3 是含有一个或多个氮原子的脂族杂环,该脂族杂环可选择被非芳香族取代基取代;
Q1 选自 C-Ra 和 N;
Q2 选自 C-Rb 和 N;以及
Ra、Rb、Rc 和 Rd 各自独立地选自由氢原子、卤素、C1-8 烷基、C1-8 烷氧基和氰基组成的组。