Epoxysuccinic acid derivatives

Details Epoxysuccinic acid derivatives Epoxysuccinic acid derivatives

C - Chemistry, Metallurgy

07

D

C07D 303/48 (2006.01) A61K 31/335 (2006.01) A61K 31/395 (2006.01) A61K 31/665 (2006.01) C07D 405/12 (2006.01) C07D 409/12 (2006.01) C07D 413/12 (2006.01) C07D 417/12 (2006.01) C07F 9/655 (2006.01)

Patent

CA 2134627

Abstract of the Disclosure A compound of the general formula: Image wherein R1 represents a carboxyl group which may optionally be esterified or amidated; R2 represents a cyclic group which may optionally be substituted or a polar group; n is a integer of 0 to 6; R3 represents hydrogen or a hydrocarbon residue which may optionally be substituted; R4 represents (1) a hydrocarbon residue which is substituted by an optionally protected amino group or (2) an alkenyl group; or R3 and R4 may be combined with the adjacent nitrogen atom to form a heterocyclic group containing at least two hetero atoms, or a salt thereof. The compound or a salt thereof of the present invention inhibits thiol proteases such as cathepsin L and B and serves well as a prophylactic/therapeutic agent for bone diseases such as osteoporosis.

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