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

4R-{2S-[2-(3S-hydroxy-7-tritylsulfanylhept-4E-enoylamino)propionylamino]-3-tritylsulfanylpropionylamino}-5R-methyl-3S-triisopropylsilanyloxyhexanoic acid 2,2,2-trichloroethyl ester

(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

12R-isopropyl-6R-methyl-13S-triisopropylsilanyloxy-2R-[4-(triphenyl-λ-sulfanyl)but-1E-enyl]-9S-tritylsulfanylmethyl-1-oxa-5,8,11-triazacyclopentadecane-4,7,10,15-tetraone