NPSLeu-Ser(Bzl)-LeuO-t-Bu
(S)-2-[(S)-2-(2,7-Di-tert-butyl-10,10-dioxo-9,10-dihydro-10λ6-thioxanthen-9-ylmethoxycarbonylamino)-3-phenyl-propionylamino]-4-methyl-pentanoic acid tert-butyl ester
DC-FM-bar-Phe-Leu-O-t-Bu
(S)-2-[(S)-2-((S)-3-Benzyloxy-2-tert-butoxycarbonylamino-propionylamino)-4-methyl-pentanoylamino]-4-methyl-pentanoic acid tert-butyl ester
tert-Butyl (4R,5S)-4-benzyl-5-(((2S)-1-(tert-butoxy)-4-methyl-1-oxopentan-2-yl)-carbamoyl)-2,2-dimethyl-1,3-oxazolidine-3-carboxylate