Alcohol or aldehyde derivatives as cathepsin L inhibitor and bone resorption inhibitor
申请人:TAKEDA CHEMICAL INDUSTRIES, LTD.
公开号:EP0611756A2
公开(公告)日:1994-08-24
The present invention provides a cathepsin L inhibitor containing a compound of the formula:
wherein R¹ is a hydrogen atom or an arylalkyl, heterocyclic-alkyl or lower alkyl group which may be substituted; R² and R³ independently are a hydrogen atom or a hydrocarbon residue which may be substituted; R⁴ is an alkanoyl, sulfonyl, carbonyloxy, carbamoyl or thiocarbamoyl group which may be substituted; X is formula: -CHO or -CH₂OB (wherein B is a hydrogen atom or a protecting group of hydroxyl group); m and n independently are an integer of 0 or 1; provided that R⁴ is an alkanoyl group substituted by aryl, a sulfonyl group substituted by aryl having more than 9 carbon atoms or by lower alkyl, or a carbamoyl or thiocarbamoyl group which may be substituted when R¹ is an unsubstituted lower alkyl, arylalkyl on methylthioethyl group, R² and R³ independently are a lower alkyl or arylalkyl, X is -CHO, m is 1 and n is 0 or 1, or a salt thereof.
Compound (I) is useful as a prophylactic/therapeutic agent for osteoporosis.
本发明提供了一种含有式化合物的凝血酶 L 抑制剂:
其中,R¹为氢原子或可被取代的芳烷基、杂环烷基或低级烷基;R²和R³各自为氢原子或可被取代的烃残基;R⁴为可被取代的烷酰基、磺酰基、羰氧基、氨基甲酰基或硫代氨基甲酰基;X为式:-CHO或-CH₂OB(其中 B 为氢原子或羟基保护基团);m 和 n 分别为 0 或 1 的整数;条件是 R⁴ 是被芳基取代的烷酰基、被具有 9 个以上碳原子的芳基或低级烷基取代的磺酰基、或当 R¹ 是未取代的低级烷基、芳烷基或甲硫基时可能被取代的氨基甲酰基或硫代氨基甲酰基,R² 和 R³ 独立地是低级烷基或芳烷基,X 是 -CHO,m 是 1,n 是 0 或 1,或其盐。
化合物 (I) 可用作骨质疏松症的预防/治疗剂。