Metalloproteinaseinhibitoren

Matrix metalloproteinase inhibiting compounds of formula (I) wherein X is a -CO2H or -CONHOH group; R1 is methyl, ethyl, allyl, thienylsulphanylmethyl, thienylsulphinylmethyl, or thienylsulphonylmethyl; R2 is iso-butyl, n-pentyl, n-hexyl, n-heptyl, n-octyl, n-nonyl, n-decyl, propylsulphanyl, cyclohexylpropyl, phenylpropyl, 4-chlorophenylpropyl, 4-methylphenylpropyl, 4-methoxyphenylpropyl, phenylbutyl, or propyloxymethyl;. R3 is a group -C(C1-C6 alkyl)2R11 wherein R11 is -OH, -SH, -O(C1-C6)alkyl, -S(C1-C6)alkyl, -SO(C1-C6)alkyl, -SO2(C1-C6) alkyl, cyclohexylmethylsulphanyl, -OPh, -OCH2Ph, -SPh, -SOPh, -SO2Ph, -SCH2Ph, -SOCH2Ph, or -SO2CH2Ph in which any of the foregoing Ph (phenyl) groups may be substituted; R4 is (C1-6)alkyl, (C1-C4)perfluoroalkyl or a group D-(C1-C6)alkyl- wherein D represents hydroxy, (C1-C6)alkoxy, (C1-C6)alkylsulphanyl, acylamino, optionally substituted phenyl or heteroaryl; R5 is hydrogen; or a salt, hydrate or solvate thereof.s