Amino and substituted amino phosphinylalkanoyl compounds useful for treating hypertension

Claim 1

A compound of the formula ##STR131## wherein X is an imino acid of the formula ##STR132## n is an integer of from 4 to 8; n' is zero or one; R 2 is hydrogen, lower alkyl, halo substituted lower alkyl, benzyl or phenethyl; R 1 and R 6 are independently selected from hydrogen, lower alkyl, benzyl, benzhydryl, or ##STR133## wherein R 14 is hydrogen, lower alkyl, cycloalkyl or phenyl, and R 15 is hydrogen, lower alkyl, lower alkoxy, phenyl, or R 14 and R 15 taken together are --(CH 2 ) 2 --, --(CH 2 ) 3 --, --CH═CH--, or ##STR134## and when either or both of R 1 and R 6 are hydrogen a basic addition salt or an amino acid addition salt thereof.