(5S,6R)-5-(tert-Butyl-dimethyl-silanyloxy)-6-methyl-5,6-dihydro-pyran-2-one

(5S,6R)-5-(tert-Butyl-dimethyl-silanyloxy)-6-methyl-5,6-dihydro-2H-pyran-2-ol

Acetic acid (3S,4R,5R,6R)-2,3-diacetoxy-5-(tert-butyl-dimethyl-silanyloxy)-6-methyl-tetrahydro-pyran-4-yl ester