2R-isopropyl-6R-methyl-13S-triisopropylsilanyloxy-2S-[4-(triphenyl-λ-sulfanyl)but-1E-enyl]-9S-tritylsulfanylmethyl-1-oxa-5,8,11-triazacyclopentadecane-4,7,10,15-tetraone

(9S,17S)-6R-isopropyl-20R-methyl-5S-triisopropylsilanyloxy-2-oxa-11,12-dithia-7,19,22-triazabicyclo[7.7.6]docos-15E-ene-3,8,18,21-tetraone

((S)-2-(((3S,4R)-4-((2S,3R)-2-((tert-butoxycarbonyl)amino)-3-(((S)-3-(4-methoxyphenyl)-2-(methylamino)propanoyl)oxy)butanamido)-3-hydroxy-5-methylhexanoyl)oxy)-3-methylbutanoyl)-L-leucyl-L-alanine

(9S,17R)-6R-isopropyl-20R-methyl-5S-triisopropylsilanyloxy-2-oxa-11,12-dithia-7,19,22-triazabicyclo[7.7.6]docos-15E-ene-3,8,18,21-tetraone

4R-[2-(9H-fluoren-9-ylmethoxycarbonylamino)-3S-tritylsulfanylpropionylamino]-3S-hydroxy-5-methylhexanoic acid 2,2,2-trichloroethyl ester