(4aR,6S,7S,8R,8aR)-6-allyl-8-(benzyloxy)-2,2-di-tert-butyl-7-(4-methoxybenzyloxy)-hexahydropyrano[3,2-d][1,3,2]dioxasiline 在
氟化氢吡啶 作用下,
以
四氢呋喃 为溶剂,
以85%的产率得到(2R,3R,4S,5S,6S)-6-allyl-4-(benzyloxy)-2-(hydroxymethyl)-5-(4-methoxybenzyloxy)-tetrahydro-2H-pyran-3-ol