305322-39-8
(S)-2-[((2R,5R,11bS)-2-Benzyloxycarbonylamino-3-oxo-2,3,5,6,11,11b-hexahydro-1H-indolizino[8,7-b]indole-5-carbonyl)-amino]-3-phenyl-propionic acid methyl ester
305322-37-6
(S)-3-[((2R,5R,11bS)-2-Benzyloxycarbonylamino-3-oxo-2,3,5,6,11,11b-hexahydro-1H-indolizino[8,7-b]indole-5-carbonyl)-amino]-4-phenyl-butyric acid methyl ester
305322-38-7
(R)-3-[((2R,5R,11bS)-2-Benzyloxycarbonylamino-3-oxo-2,3,5,6,11,11b-hexahydro-1H-indolizino[8,7-b]indole-5-carbonyl)-amino]-4-phenyl-butyric acid methyl ester