(2S,3R,3aS,5'S,6S,7aR)-3-<(benzyloxy)methoxy>-3-<(benzyloxy)methyl>decahydro-5'-methyl-4'-methylene-6-vinylspiropyran>

(2S,3R,3aS,5'S,6S,7aR)-3-(hydroxymethyl)-5'-methyl-4'-methylene-6-vinyldecahydro-3H-spiro[benzofuran-2,2'-pyran]-3-ol