(2R,3S,6R)-3-Methyl-6-((S)-1-methyl-allyl)-3,6-dihydro-2H-pyran-2-carboxylic acid methyl ester

(5S,6R)-5-<2-(benzyloxy)-1(S)-methyl>ethyl-6-<1(E)-propenyl>-1,4-dioxan-2-one