HO-D-Hpla(Bn)-D-Leu-L-Choi-OH

(2S,3aR,7aR)-1-benzyl-2-hydroxymethyl-6-oxooctahydroindole ethylene acetal

1-((2S,3aR,7aR)-1-benzyloctahydrospiro[indole-6,2'-[1,3]dioxolan]-2-yl)ethan-1-one

methyl (2S,3aS,6R,7aS)-1-tert-butoxycarbonyl-6-hydroxy-octahydroindole-2-carboxylate

methyl (2S,3aS,6S,7aS)-1-benzyl-6-hydroxy-octahydroindole-2-carboxylate