(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

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

(11S,11aS)-10-allyloxycarbonyl-8-benzyloxy-11-hydroxy-2-(2-hydroxyethyl)-7-methoxy-1,10,11,11a-tetrahydro-5H-pyrrolo[2,1-c][1,4]benzodiazepin-5-one

[5-Benzyloxy-2-((S)-4-cyanomethyl-2-hydroxymethyl-2,3-dihydro-pyrrole-1-carbonyl)-4-methoxy-phenyl]-carbamic acid allyl ester

(2S)-N-[(2-allyloxycarbonylamino)-4-benzyloxy-5-methyloxybenzoyl]-2-(hydroxymethyl)-4-(methoxycarbonylmethyl)-2,3-dihydropyrrole