(2008/06/13)
Z-Leu-Leu-OtBu
(S)-tert-butyl 2-((S)-2-(((benzyloxy)carbonyl)amino)propanamido)-4-methylpentanoate
NPSLeu-Ser(Bzl)-LeuO-t-Bu
(S)-2-[(S)-2-((S)-3-Benzyloxy-2-tert-butoxycarbonylamino-propionylamino)-4-methyl-pentanoylamino]-4-methyl-pentanoic acid tert-butyl ester
(S)-2-{[(6R,7R)-7-((S)-2-tert-Butoxycarbonylamino-3-phenyl-propionylamino)-3-methyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carbonyl]-amino}-4-methyl-pentanoic acid tert-butyl ester