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

(5S)-5-[[tert-butyl(dimethyl)silyl]oxymethyl]-1-(4,5-dimethoxy-2-nitro-benzoyl)pyrrolidin-3-ol

1,1'-[[(propane-1,3-diyl)dioxy]-bis[(2-amino-5-methoxy-1,4-phenylene)carbonyl]]-bis[(2S,4R)-2-t-butyldimethylsilyloxymethyl-4-hydroxypyrrolidine]

1,1'-[[(propane-1,3-diyl)dioxy]-bis[(2-nitro-5-methoxy-1,4-phenylene)carbonyl]]-bis[(2S,4R)-2-t-butyldimethylsilyloxymethyl-4-hydroxypyrrolidine]

1,1'-[[(propane-1,3-diyl)dioxy]-bis[(2-amino-N-allyloxycarbonyl-5-methoxy-1,4-phenylene)carbonyl]]-bis[(2S)-2-t-butyldimethylsilyloxymethyl-4-oxo-pyrrolidine]