The State University of New York

Joan E MacDiarmid

Thomas J Bardos

Michael E Perlman

A method of inhibiting the replication of tumor cells is disclosed wherein Novel bis (2,2-dimethyl-1-aziridinyl)phosphinic amide antineoplastic agents of the formula: ##STR1## wherein X is R and R' are each, independently, hydrogen, alkyl, substituted alkyl, phenyl and substituted phenyl, Y is alkyl or substituted alkyl of 1-10 carbon atoms and, Z is oxygen or sulfur is administered to tumor cells.

Novel bis(2,2-dimethyl-1-aziridinyl) phosphinic amides for use in the

Novel bis(2,2-dimethyl-1-aziridinyl)phosphinic amide antineoplastic agents are disclosed of the formula: ##STR1## wherein R and R' are each, independently, hydrogen, alkyl, substituted alkyl, phenyl and substituted phenyl and, Z is oxygen or sulfur.

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Amherst, NY, United States of America

Joan E MacDiarmid