(1S,2R,3S,4R)-2-(2-Hydroxy-ethyl)-4-(tetrahydro-pyran-2-yloxy)-3-(tetrahydro-pyran-2-yloxymethyl)-cyclopentanol 在
三苯基膦 、
偶氮二甲酸二乙酯 作用下,
以
二氯甲烷 为溶剂,
以85%的产率得到(3aR,4S,5R,6aS)-5-(Tetrahydro-pyran-2-yloxy)-4-(tetrahydro-pyran-2-yloxymethyl)-hexahydro-cyclopenta[b]furan