(R)-6-((R)-2-Benzyloxy-1-methyl-ethyl)-5,6-dihydro-pyran-2-one

(4S,6R)-4-Allyl-6-((E)-(R)-3-iodo-1-methyl-allyl)-tetrahydro-pyran-2-one

(4S,6R)-4-Allyl-6-((R)-2-benzyloxy-1-methyl-ethyl)-tetrahydro-pyran-2-one