甲基碘化镁 、
(4aR,6S,7R,8aR)-6-Methoxy-2-phenyl-7-(tetrahydro-pyran-2-yloxy)-tetrahydro-pyrano[3,2-d][1,3]dioxin-8-one 生成 (4aR,6S,7S,8S,8aR)-6-Methoxy-8-methyl-2-phenyl-7-(tetrahydro-pyran-2-yloxy)-hexahydro-pyrano[3,2-d][1,3]dioxin-8-ol 、 (4aR,6S,7S,8R,8aR)-6-Methoxy-8-methyl-2-phenyl-7-(tetrahydro-pyran-2-yloxy)-hexahydro-pyrano[3,2-d][1,3]dioxin-8-ol