(3aR,6R,6aR)-4-[2,4-bis[(2-methylpropan-2-yl)oxy]pyrimidin-5-yl]-6-(2-methoxypropan-2-yloxymethyl)-2,2-dimethyl-6,6a-dihydro-3aH-furo[3,4-d][1,3]dioxol-4-ol 在
L-Selectride 作用下,
以
四氢呋喃 、
二氯甲烷 为溶剂,
以88%的产率得到(R)-1-{(4R,5S)-5-[(S)-(2,4-Di-tert-butoxy-pyrimidin-5-yl)-hydroxy-methyl]-2,2-dimethyl-[1,3]dioxolan-4-yl}-2-(1-methoxy-1-methyl-ethoxy)-ethanol