The present invention relates to a novel class of compounds mainly, leucinamide-amino-carboxylate derivatives of formula (I) wherein Y is CR
1
R
2
, O, S, —SO
2
, C=0 or NR
9
; Z is CR
1
R
2
, O, S, —SO
2
, C═O or NR
9
and each G is independently a CR
1
CR
2
. Said compounds are cathepsin cysteine protease inhibitors, including but not limited to, inhibitors of cathepsin K, L, S and B and to pharmaceutical compositions thereof. These compounds are useful for treating and preventing cathepsin dependent conditions in which inhibition of bone resorption is indicated, such as osteoporosis.
本发明涉及一种新型化合物类别,主要是公式(I)中的亮
氨酰胺基-
氨基-
羧酸衍
生物,其中Y为CR1R2,O,S,—SO2,C=0或NR9;Z为CR1R2,O,S,—SO2,C═O或NR9,每个G独立地为CR1CR2。所述化合物是半胱
氨酸
蛋白酶的卡
特普西蛋白酶抑制剂,包括但不限于卡
特普西
蛋白酶K、L、S和B的
抑制剂,以及其制药组合物。这些化合物对于治疗和预防卡
特普西蛋白依赖性疾病,如骨质疏松症等需要抑制骨吸收的疾病是有用的。