Dihydro-2h-pyran
4,7-Dioxa-3,8-disiladecane,5-[[(2S)-6-[1,1-dimethyl-2-(phenylsulfonyl)ethyl]-3,4-dihydro-2H-pyran-2-yl]methyl]-2,2,3,3,6,8,8,9,9-nonamethyl-, (5R,6R)-
4,7-Dioxa-3,8-disiladecane,5-[(2R)-5,6-dihydro-2H-pyran-2-yl]-6-ethenyl-2,2,3,3,8,8,9,9-octamethyl-, (5S,6R)-