α-methyl-N-<(phenylmethoxy)carbonyl>-D-tryptophan

α-methyl-(R)-tryptophan methyl ester

-6-<<2-<(2-amino-2-phenylethyl)amino>-1-(1H-indol-3-ylmethyl)-1-methyl-2-oxoethyl>amino>-6-oxohexanoic acid monohydrochloride

1,1-dimethylethyl -<2-<<3-(1H-indol-3-yl)-2-methyl-1-oxo-2-<<(phenylmethoxy)carbonyl>amino>propyl>amino>-1-phenylethyl>carbamate

1,1-dimethylethyl -<2-<<2-amino-3-(1H-indol-3-yl)-2-methyl-1-oxopropyl>amino>-1-phenylethyl>carbamate