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

(E)-4-[(2R,4R)-2-((S)-1-Methyl-2-oxo-ethyl)-6-oxo-tetrahydro-pyran-4-yl]-but-2-enoic acid tert-butyl ester

(E)-4-[(2R,4R)-2-((R)-2-Hydroxy-1-methyl-ethyl)-6-oxo-tetrahydro-pyran-4-yl]-but-2-enoic acid tert-butyl ester

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

(3R,5S,6R)-3-Allyl-7-benzyloxy-5-hydroxy-6-methyl-heptanoic acid