Compounds of the formula II:
wherein
R
2
is the side chain of leucine, isoleucine, cyclohexylglycine, O-methyl threonine, 4-fluoroleucine or 3-methoxyvaline;
R
3
is H, methyl or F;
Rq is trifluoromethyl and Rq′ is H or Rq and Rq′ define keto;
Q is a p-(C
1
-C
6
alkylsulphonyl)phenyl- or an optionally substituted 4-(C
1
-C
6
alkyl)piperazin-1-yl-thiazol-4-yl-moiety 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,R2是亮
氨酸、
异亮氨酸、
环己基甘
氨酸、O-
甲基苏
氨酸、4-
氟亮
氨酸或3-甲
氧基缬
氨酸的侧链;R3是H、
甲基或F;Rq是三
氟甲基,Rq'是H或Rq,且Rq'定义为
酮基;Q是p-(C1-C6烷基磺酰)
苯基或可选取代的4-(C1-C6烷基)
哌嗪-1-基
噻唑-4-基基团。
该化合物在治疗因过度表达或激活卡他普星K而表现出的疾病(如骨质疏松、骨关节炎、类风湿性关节炎或骨转移)方面具有应用价值。