Acetic acid (2R,3S,4R)-2,4-diacetoxy-tetrahydro-pyran-3-yl ester

[(2R,3S,4R)-3-(tert-Butyl-dimethyl-silanyloxy)-4-hydroxy-tetrahydro-pyran-2-yl]-acetonitrile

(-)-(2R,3R,4R)-4-(t-Butyldimethylsiloxy)-2-(cyanomethyl)-tetrahydropyran-3-yl Benzoate