(N-Ac-D-p-F-phe(sup 1)-D-p-Cl-phe(sup 2)-D-trp(sup 3,6)-D-ala(sup 10))-LHRH Luteinizing hormone-releasing hormone, (N-AC-D-p-F-phe(sup 1)-D-p-Cl-phe(sup 2)-D-trp(sup 3,6)-D-ala(sup 10))- OK6376200