(2S,4R)-5-(tert-Butyl-dimethyl-silanyloxy)-2,4-dimethyl-pentanoic acid ((R)-1-phenyl-ethyl)-amide

3,5-dimethyl-tetrahydropyran-2-one

(+)-(2S,4R)-cis-2,4-dimethyl-δ-valerolactone

(3S,5R)-3,5-Dimethyl-tetrahydro-pyran-2-ol