3-[(2S,5S)-5-{2-[(2S,4R,6R)-6-{[(2S,3S,4R,5R)-5-[(6S)-6-hydroxy-2,2,3,3-tetramethyl-4-oxa-3-silahept-7-yl]-4-methoxy-3-{[(4-methylphenyl)dioxo-λ6-sulfanyl]methyl}tetrahydro-2-furyl]methyl}-4-methyl-5-methylidene-3,4,5,6-tetrahydro-2H-pyran-2-yl]ethyl}-4-methylidenetetrahydro-2-furyl]propan-1-ol