<3R-<3α,5α,6β(1S*,3S*)>>-6-<5-(Benzoyloxy)-1-methoxy-3-methylpentyl>tetrahydro-5-methoxy-3-methyl-2H-pyran-2-one 在
L-Selectride 作用下,
以
四氢呋喃 为溶剂,
以94%的产率得到<2R-<2α(γS*,εS*),3β,5β,6α/β>>-6-Hydroxy-ε,3-dimethoxy-γ,5-dimethyltetrahydro-2H-pyran-2-pentanol benzoate