(3E,5E,8S,9E,11S,12R,13E,15E,18S)-3-{[4-O-(3,5-Dichlor-2-ethyl-4,6-dihydroxybenzoyl)-2-O-methyl-β-D-rhamnopyranosyloxy]methyl}-12-[(2R,3S,4R,5S)-3,4-dihydroxy-6-6-dimethyl-5-(2-methylpropanoyloxy)oxan-2-yloxy]-11-ethyl-8-hydroxy-18-[(1R)-1-hydroxyethyl]-9,13,15-trimethyloxacyclooctadeca-3,5,9,13,15-pentaen-2-on