Acetic acid (1S,2S,3S,4S,5S,6S)-2-acetoxy-4-((R)-1-acetoxy-prop-2-ynyl)-5-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-1-methyl-4-(2,2,2-trichloro-acetylamino)-7-oxa-bicyclo[4.1.0]hept-3-yl ester

Acetic acid (R)-1-[(1S,2S,3S,4S,5S,6S)-2-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-6-methyl-3-(2,2,2-trichloro-acetylamino)-4,5-bis-trimethylsilanyloxy-7-oxa-bicyclo[4.1.0]hept-3-yl]-prop-2-ynyl ester

2,2,2-Trichloro-N-[(1R,2S,3R,4S,6S)-4-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-3-formyl-2-hydroxy-6-methyl-7-oxa-bicyclo[4.1.0]hept-3-yl]-acetamide

(4S,4aS,6S,7S,10S,10aR,11S)-3-benzyl-11-(benzyloxy)-6-hydroxy-6-methylhexahydro-4,10-epoxy-7,10a-methanooxocino[4,5-d]pyrimidine-2,9(1H,10H)-dione

1-Benzyl-3-[(1S,4S,5S,6S,8S,9S)-9-benzyloxy-6-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-4,8-dihydroxy-8-methyl-3-oxo-2-oxa-bicyclo[3.3.1]non-5-yl]-urea