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-C4alkoxy 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.
化合物II的式子:
其中,R1和R2独立地为H、F或
CH3;或者R1形成一个
乙炔键,R2为H或C3-C6环烷基,该环烷基可选地被一个或两个取代基独立地选择为甲基、
CF3、OMe或卤素;
R3为C1-C3烷基或C3-C6环烷基,其中任一种均可选地被一个或两个甲基和/或
氟、三
氟甲基或甲氧基取代,当R3为C3-C6环烷基时,它可以选择地被
氟取代;
R4为甲基或
氟;m为0、1或2;E为键或
噻唑基,该
噻唑基可选地被甲基或
氟取代;
A1为CH或N,A2为CR6R7或NR6,其中至少一个为N;R6为H、C1-C4烷基、C1-C4卤代烷基、C1-C3烷基-O-C1-C3烷基,当A2为C时,R6也可以是C1-C4烷氧基或F;R7为H、C1-C4烷基或对于药学上可接受的盐、N-氧化物或其
水合物,在治疗因cathepsin K不适当表达或激活所致的疾病方面具有用途,如骨质疏松症、骨关节炎、类风湿性关节炎或骨转移。