Z-Leu-OH
(3S,4S)-4-(carbamic acid benzyl ester)-3-hydroxy-6-methyl-heptanoic acid
(2R,4S,5S)-N-Isobutyl-5-benzyloxycarbonylamino-2-ethyl-4-hydroxy-7-methyloctanamide
(2R,4S,5S)-N-isobutyl-5-(benzyloxycarbonyl)amino-2-ethyl-4-hydroxy-7-methyloctanamide
methyl 6-<