申请人:——
公开号:US20040110806A1
公开(公告)日:2004-06-10
N-terminal substituted dipeptide nitriles as defined are useful as inhibitors of cysteine cathepsins, e.g. cathepsins B, K, L and S, and can be used for the treatment of cysteine cathepsin dependent diseases and conditions, including inflammation, rheumatoid arthritis, osteoarthritis, osteoporosis, tumors (especially tumor invasion and tumor metastasis), coronary disease, atherosclerosis (including atherosclerotic plaque rupture and destabilization). Particular dipeptide nitriles are compounds of formula I, or physiologically-acceptable and -cleavable esters or a salts thereof
1
wherein: the symbols are as defined.
In particular it has been found that by appropriate choice of groups R, R
2
, R
3
, R
4
, R
5
, X
1
, Y and L, the relative selectivity of the compounds as inhibitors of the various cysteine cathepsin types, e.g. cathepsins B, K, L and S may be altered, e.g. to obtain inhibitors which selectively inhibit a particular cathepsin type or combination of cathepsin types.
N-末端取代的二肽硝基化合物可作为半胱氨酸蛋白酶的抑制剂,例如半胱氨酸蛋白酶B、K、L和S,并可用于治疗半胱氨酸蛋白酶依赖性疾病和病况,包括炎症、类风湿性关节炎、骨关节炎、骨质疏松症、肿瘤(尤其是肿瘤侵袭和转移)、冠心病、动脉粥样硬化(包括动脉粥样硬化斑块破裂和不稳定性)。特定的二肽硝基化合物是公式I的化合物,或其生理上可接受和可分解酯或其盐,其中:符号的定义如上所述。特别是,通过适当选择R、R2、R3、R4、R5、X1、Y和L基团,可以改变化合物作为不同半胱氨酸蛋白酶类型的抑制剂的相对选择性,例如获得选择性抑制特定半胱氨酸蛋白酶类型或半胱氨酸蛋白酶类型组合的抑制剂。