(2S,3aS,5R,8aR)-2-(2-Benzyloxy-ethyl)-5-((2R,4aR,6S,7R,9aS)-2-phenyl-7-triethylsilanyloxy-hexahydro-1,3,5-trioxa-benzocyclohepten-6-ylmethyl)-hexahydro-furo[3,2-b]oxepin-6-one

(2S,3aS,5R,7S,8aR)-2-(2-Benzyloxy-ethyl)-5-((2R,4aR,6S,7R,9aS)-2-phenyl-7-triethylsilanyloxy-hexahydro-1,3,5-trioxa-benzocyclohepten-6-ylmethyl)-7-triisopropylsilanyloxy-hexahydro-furo[3,2-b]oxepin-6-one