(S)-4-Methyl-2-[(Z)-3-phenyl-2-({(S)-1-[(E)-(3-phenyl-acryloyl)]-pyrrolidine-2-carbonyl}-amino)-acryloylamino]-pentanoic acid methyl ester

(S)-4-Methyl-2-[((2S,3R)-3-phenyl-1-{(S)-1-[(E)-(3-phenyl-acryloyl)]-pyrrolidine-2-carbonyl}-aziridine-2-carbonyl)-amino]-pentanoic acid methyl ester

(S)-4-Methyl-2-[((S)-1-{(2S,3R)-3-phenyl-1-[(E)-(3-phenyl-acryloyl)]-aziridine-2-carbonyl}-pyrrolidine-2-carbonyl)-amino]-pentanoic acid methyl ester