Thiadiazole compounds useful as inhibitors of cysteine activity dependent enzymes
申请人:Apotex Inc.
公开号:US06468977B1
公开(公告)日:2002-10-22
Novel 1,2,4-thiadiazole compounds are provided, which are effective as inhibitors of cysteine activity-dependent enzymes and in particular of cysteine proteases. The compounds are useful in treating acne by inhibition of transglutaminase, common cold by inhibition of human rhinovirus 3C protease and inflammatory joint disease by inhibition of cathepsins. The compounds of the present invention are 3,5-disubstituted 1,2,4-thiadazole of the general formula (I):
where Z is a nitrogen containing group with recognition sequence for the enzyme and Y is a substituent that tunes the reactivity of the inhibitor towards the thiol group of the cysteine activity-dependent enzyme. The Y group may also serve in recognition.
提供了新型1,2,4-噻二唑化合物,这些化合物可有效作为半胱氨酸活性依赖酶的抑制剂,特别是半胱氨酸蛋白酶的抑制剂。这些化合物可用于通过抑制转谷氨酰胺酶治疗痤疮,通过抑制人类鼻病毒3C蛋白酶治疗普通感冒,通过抑制半胱氨酸蛋白酶治疗炎症性关节疾病。本发明的化合物是通式(I)的3,5-二取代的1,2,4-噻二唑,其中Z是含氮基团,具有对酶的识别序列,Y是调节抑制剂对半胱氨酸活性依赖酶巯基的反应性的取代基。Y基团也可用于识别。