Hydroxamate derivatives of selected nonsteroidal antiinflammatory acyl residues and their use for cyclooxygenase and 5-lipoxygenase inhibition

A compound of the formula (Ia) ##STR55## and pharmaceutically acceptable cid addition or base salt thereof in which (i) R.sub.1 is hydrogen, lower alkyl or acyl;

• (ii) R.sub.2 is H, lower alkyl, cycloalkyl of from three to twelve carbon atoms of which from three to seven carbons are ring carbons, aryl arylalkyl or heteroaryl with the overall proviso that R.sub.1 and R.sub.2 cannot both be hydrogen;
• and
• (iii) R.sub.3 is hydrogen, phenylmethyl, allyl, vinyl, isopropenyl or ##STR56## in which R.sub.1.sbsb.a is selected from the group consisting of benzene, naphthalene, biphenyl and substituted benzene, naphthalene and biphenyl radicals in which said substituent is selected from the group consisting of halogen, lower alkyl, lower alkylthio, lower alkoxy, trifluoromethyl, phenoxy, lower alkyl phenoxy, lower alkoxy phenoxy, halogenophenoxy, trifluoroacetyl, difluoroacetyl, monofluoroacetyl, di-lower alkyl sulfamyl, lower alkanyl, di-lower alkyl carboxamido, cyano, carb-lower alkoxy, trifluoromethylthio, lower alkyl sulfinyl, lower alkylsulfonyl, benzylthio, lower alkylbenzylthio, lower alkoxybenzylthio, halogenobenzylthio, mercapto, nitro, amino, di-(lower alkyl)amino, lower alkylamino, lower alkanoylamino, hydroxy, lower alkanoyloxy, trifluoroacetoxy, difluoroacetoxy, monofluoroacetoxy, benzyloxy, lower alkylbenzyloxy, lower alkoxybenzyloxy, and halogenobenzyloxy;
• R.sub.2.sbsb.a is selected from the group consisting of hydrogen, lower alkenyl and lower alkyl;
• R.sub.3.sbsb.a is selected from the group consisting of hydrogen and lower alkyl;
• R.sub.4.sbsb.a is selected from the group consisting of hydrogen, lower alkyl, lower alkoxy, fluorine and trifluoromethyl;
• R.sub.5.sbsb.a is selected from the group consisting of hydrogen, hydroxy, lower alkyl, lower alkoxy, nitro, amino, lower alkylamino, di(lower alkyl) amino, lower alkanoylamino, lower alkanoyl, lower alkylamino, bis(hydroxy lower alkyl)amino, 1-pyrrolidino, 4-methyl-1-piperazinyl, 4-morpholinyl, cyano, amino lower alkyl, mono-lower alkylamino lower alkyl, di-lower alkyl amino lower alkyl, trifluoromethyl, halogen, di(lower alkyl)sulfamyl, benzylthio, lower alkylbenzylthio, lower alkoxybenzylthio, halogenobenzylthio, benzyloxy, lower alkylbenzyloxy, lower alkoxybenzyloxy, halogenobenzyloxy, lower alkenyl, lower alkenyloxy, 1-azacyclopropyl, cyclopropyl (lower alkoxy) methoxy, and cyclobutyl(lower alkoxy) methoxy.