abstract |
New phosphinylalkanoyl prolines which have the general formula wherein R1 is lower alkyl, phenyl or phenyl-lower alkyl; R2 is hydrogen, phenyl-lower alkyl or a metal ion; R3 is hydrogen or lower alkyl; R4 is hydrogen, lower alkyl, phenyl-lower alkyl or a metal ion; and N IS 0 OR 1, ARE USEFUL AS HYPOTENSIVE AGENTS. |