Synonyms: 176589-08-5;AC1L9SSU;Cbz-Phe-psi((R,R)-trans-epoxide)Gly-Val;Cbz-Phe- .psi.[(R,R)-trans-epoxide]Gly-Val;(2S)-3-methyl-2-[[2-[[2-[(2R,3R)-3-[(1S)-2-phenyl-1-(phenylmethoxycarbonylamino)ethyl]oxiran-2-yl]acetyl]amino]acetyl]amino]butanoic acid;L-Valine, N-(N-((3-(2-phenyl-1-(((phenylmethoxy)carbonyl)amino)ethyl)oxiranyl)acetyl)glycyl)-, (2R-(2alpha,3beta(S*)))-;L-Valine, N-[N-[[3-[2-phenyl-1-[[(phenylmethoxy)carbonyl]amino]ethyl]oxiranyl]acetyl]glycyl]-, [2R-[2a,3b(S*)]]-