4-((4aR,6S,7R,8aS)-6-Allyl-2,2-di-tert-butyl-4a,6-dimethyl-hexahydro-1,3,5-trioxa-2-sila-naphthalen-7-yloxy)-5-[(2R,3S,5R,6S)-5-benzyloxy-6-benzyloxymethyl-3-(naphthalen-2-ylmethoxy)-tetrahydro-pyran-2-yl]-pent-1-en-3-ol

1-[(2R,3S,5R,6S)-5-Benzyloxy-6-benzyloxymethyl-3-(naphthalen-2-ylmethoxy)-tetrahydro-pyran-2-yl]-2-((4aR,6S,7R,8aS)-2,2-di-tert-butyl-4a,6-dimethyl-6-vinyl-hexahydro-1,3,5-trioxa-2-sila-naphthalen-7-yloxy)-hex-5-en-3-ol

4-((4aR,6S,7R,8aS)-6-Allyl-2,2-di-tert-butyl-4a,6-dimethyl-hexahydro-1,3,5-trioxa-2-sila-naphthalen-7-yloxy)-5-[(2R,3S,5R,6S)-5-benzyloxy-6-benzyloxymethyl-3-(naphthalen-2-ylmethoxy)-tetrahydro-pyran-2-yl]-2-methyl-pent-1-en-3-ol