Compounds of the formula II:
wherein
R1 and R2 are independently H, F or CH3; or
R1 forms an ethynyl bond and R2 is H or C3-C6 cycloalkyl which is optionally substituted with one or two substituents independently selected from methyl, CF3, OMe or halo;
R3 is C1-C3 alkyl or C3-C6 cycloalkyl, either of which is optionally substituted with one or two methyl and/or a fluoro, trifluoromethyl or methoxy, when R3 is C3-C6 cycloalkyl it may alternatively be gem substituted with fluoro;
R4 is methyl or fluoro; m is 0, 1 or 2;
E is a bond, or thiazolyl, optionally substituted with methyl or fluoro;
A1 is CH or N,
A2 is CR6R7 or NR6, provided at least one of A1 and A2 comprises N;
R6 is H, C1-C4 alkyl, C1-C4 haloalkyl, C1-C3 alkyl-O—C1-C3 alkyl, or when A2 is C, R6 can also be C1-C4 alkoxy or F;
R7 is H, C1-C4 alkyl or F
or a pharmaceutically acceptable salt, N-oxide or hydrate thereof, have utility in the treatment of disorders characterized by inappropriate expression or activation of cathepsin K, such as osteoporosis, osteoarthritis, rheumatoid arthritis or bone metastases.
式 II 的化合物:
其中
R1 和 R2 独立地为 H、F 或
CH3;或
R1 形成
乙炔键,R2 是 H 或 C3-C6 环烷基,可任选被一个或两个独立选自甲基、
CF3、OMe 或卤素的取代基取代;
R3 是 C1-C3 烷基或 C3-C6 环烷基,其中任一环烷基可选择被一个或两个甲基和/或
氟、三
氟甲基或甲氧基取代,当 R3 是 C3-C6 环烷基时,也可选择被
氟取代;
R4 是甲基或
氟;m 是 0、1 或 2;
E 是键,或可选择被甲基或
氟取代的
噻唑基;
A1 是 CH 或 N、
A2 是 CR6R7 或 NR6,条件是 A1 和 A2 中至少有一个包含 N;
R6 是 H、C1-C4 烷基、C1-C4 卤代烷基、C1-C3 烷基-O-C1-C3 烷基,或者当 A2 是 C 时,R6 也可以是 C1-C4 烷氧基或 F;
R7 是 H、C1-C4 烷基或 F
或其药学上可接受的盐、N-氧化物或
水合物,可用于治疗以不适当表达或激活 cathepsin K 为特征的疾病,如骨质疏松症、骨关节炎、类风湿性关节炎或骨转移。