[2-((S)-2-Hydroxymethyl-4-oxo-pyrrolidine-1-carbonyl)-4,5-dimethoxy-phenyl]-carbamic acid 2,2,2-trichloro-ethyl ester

(11S,11aS)-11-Hydroxy-7,8-dimethoxy-2-((E)-2-methoxycarbonyl-vinyl)-5-oxo-11,11a-dihydro-1H,5H-benzo[e]pyrrolo[1,2-a][1,4]diazepine-10-carboxylic acid 2,2,2-trichloro-ethyl ester

{2-[(2S,4R)-2-(tert-Butyl-dimethyl-silanyloxymethyl)-4-hydroxy-pyrrolidine-1-carbonyl]-4,5-dimethoxy-phenyl}-carbamic acid 2,2,2-trichloro-ethyl ester

(11S,11aS)-2-Eth-(E)-ylidene-11-hydroxy-7,8-dimethoxy-5-oxo-2,3,11,11a-tetrahydro-1H,5H-benzo[e]pyrrolo[1,2-a][1,4]diazepine-10-carboxylic acid allyl ester

(11S,11aS)-2-((E)-2-Dimethylcarbamoyl-vinyl)-11-hydroxy-7,8-dimethoxy-5-oxo-11,11a-dihydro-1H,5H-benzo[e]pyrrolo[1,2-a][1,4]diazepine-10-carboxylic acid 2,2,2-trichloro-ethyl ester