(2R)-3-[(3S)-1-benzyl-6-benzyloxy-5-bromo-3-(tert-butyldimethylsilanyloxymethyl)-2,3-dihydro-1H-indol-4-yl]-2-benzyloxycarbonylamino-2-methyl-3-oxopropionic acid methyl ester

methyl (2R,8S)-4-hydroxy-2-methyl-8-(((methylsulfonyl)oxy)methyl)-1-oxo-6-(5,6,7-trimethoxy-1H-indole-2-carbonyl)-1,2,3,6,7,8-hexahydropyrrolo[3,2-e]indole-2-carboxylate

(2R,8S)-6-benzyl-4-benzyloxy-8-(tert-butyldimethylsilanyloxymethyl)-2-methyl-1-oxo-1,2,3,6,7,8-hexahydro-3,6-diaza-as-indacene-2,3-dicarboxylic acid 3-benzyl ester 2-methyl ester

(2R,8S)-4-benzyloxy-8-(tert-butyldimethylsilanyloxymethyl)-2-methyl-1-oxo-1,2,3,6,7,8-hexahydro-3,6-diaza-as-indacene-2,3,6-tricarboxylic acid 3-benzyl ester 2-methyl ester 6-(2,2,2-trichloroethyl) ester

(2R,8S)-4-benzyloxy-8-hydroxymethyl-2-methyl-1-oxo-6-(5,6,7-trimethoxy-1H-indole-2-carbonyl)-1,2,3,6,7,8-hexahydro-3,6-diaza-as-indacene-2,3-dicarboxylic acid 3-benzyl ester 2-methyl ester