Importance

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Abstract

A compound of the general formula I ##STR1## wherein Y is O or S; n is 1, 2, 3 or 4; X represents hydroxamic acid, carboxylic acid, phosphonic acid, acetylthiomethyl group or a mercaptomethyl group; R1 is ##STR2## wherein E, when present represents, a bond or optionally substituted methylene or ethylene; s and t are independently 0, 1, 2 or 3; A and A' independently represent a bond, or a saturated or unsaturated, optionally substituted cyclic or heterocyclic hydrocarbon di- or triradical; Z represents a bond, O, S, C(O), C(O)NR7, NR7C(O) or NR7, wherein R7 is hydrogen, hydroxy, branched or straight, saturated or unsaturated, optionally substituted hydrocarbon radical; R5 represents a bond, alkane or alkene diradical, one or more ether diradicals (R--O--R') or amine diradicals (R--N--R'), wherein R and R' independently represent alkane or alkene diradicals with a C-content from 0 to 3; R6 represents hydrogen, hydroxy, halogen, cyano, nitro, branched or straight, saturated or unsaturated, optionally substituted hydrocarbon radical, unsaturated optionally substituted cyclic or heterocyclic hydrocarbon radical, NR8R9, C(O)NR8R9, C(O)R8, CO(O)R8, S(O).sub.2 R9, wherein each R8 and R9 independently represent hydrogen, halogen, a branched or straight, saturated or unsaturated, optionally substituted hydrocarbon radical; R2 represents hydrogen, (C.sub.1-8)alkyl, (C.sub.2-6)alkenyl, (C.sub.3-8)cycloalkyl, aryl(C.sub.0-6)alkyl or heteroaryl(C.sub.0-6)alkyl; provided that if A, A', Z and R5 are all bonds, and s and t are both 0 (zero), then R6 is different from hydrogen; or a salt, hydrate or solvate thereof. The compounds are valuable for human and veterinary therapy.

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First Claim