(2S)-[(1R,4R,6S)-1-(benzo[1,3]dioxol-5-yl)-6-benzyloxy-4-(tert-butyldimethylsilyloxy)-2-cyclohexen-1-yl]-2-hydroxyacetic acid ethyl ester

(2R)-2-[(1R,4R,6S)-1-(benzo[1,3]dioxol-5-yl)-6-benzyloxy-4-(tert-butyldimethylsilyloxy)-2-cyclohexen-1-yl]-2-hydroxyethanol