Phosphinylcycloalkylcarbonyl and phosphinylcycloalkenylcarbonyl dipeptides

Claim 1

A compound of the formula ##STR28## wherein Z completes a cycloalkyl ring of 3 to 10 carbon atoms; a cycloalkyl ring of 3 to 10 carbon atoms in which one of the carbon atoms is substituted by a lower alkyl of one to four carbon atoms, a lower alkoxy of one to four carbon atoms, a lower alkylthio of one to four carbon atoms, a phenyl, benzyl, halo, trifluoromethyl or hydroxy group; a cycloalkenyl ring of five to seven carbon atoms; X is ##STR29## R 7 is hydrogen, cyclohexyl, lower alkoxy of 1 to 4 carbons, ##STR30## wherein n is zero, one or two and R 13 is hydrogen, methyl, methoxy, methylthio, Cl, Br, F, or hydroxy. R 6 and R x are hydrogen, an alkali metal salt straight or branched chain alkyl of 1 to 4 carbons, or ##STR31## R 17 is hydrogen, straight or branched chain lower alkyl of 1 to 4 carbons, cyclohexyl and R 18 is straight or branched chain lower alkyl of 1 to 4 carbons or phenyl; R is hydrogen, lower alkyl, cycloalkyl, ##STR32## Y is an integer from 1 to 4; R 2 is lower alkyl, phenylalkyl, or aminoalkyl.