(2S)-N-{4-[3-(7-methoxy-(11aS)-1,2,3,10,11,11a-hexahydro-5H-pyrrolo[2,1-c][1,4]benzodiazepine-5-one-8-yloxy)propoxy]-5-methoxy-2-aminobenzoyl}pyrrolidine-2-carbaldehyde diethyl thioacetal

(S)-3-cyano-3,3-diphenylpropyl 4-(3-(5-amino-4-(2-(bis(ethylthio)methyl)pyrrolidine-1-carbonyl)-2-methoxyphenoxy)propyl)piperazine-1-carbodithioate

1,1'-{[(bispropane-1,N-diyl)piperazine]dioxy}bis[(11aS)-7-methoxy 2-aminobenzoylpyrrolidin-2-carboxaldehyde diethylthioacetal]

(2S)-N-{4-[3-[(10-methyl-5,5-dioxo-5,10-dihydro-5-benzo[e][1,2,4]triazolo[4,3-b][1,2,4]thiadiazin-3-yl)sulfanyl]propoxy]-5-methoxy-2-nitrobenzoyl}pyrrolidine-2-carboxaldehyde diethyldithioacetal

(2S)-N-{4-[3-[(10-phenyl-5,5-dioxo-5,10-dihydro-5-benzo[e][1,2,4]triazolo[4,3-b][1,2,4]thiadiazin-3-yl)sulfanyl]propoxy]-5-methoxy-2-nitrobenzoyl}pyrrolidine-2-carboxaldehyde diethyldithioacetal