(2S,4S,8R)-8-methyl-2-phenyl-1,7-dioxaspiro<5.5>undecan-4-yl 5-dimethyl-t-butylsilyloxy-6-methyl-3-oxohept-6-enoate 在
sodium tetrahydroborate 作用下,
以
甲醇 为溶剂,
反应 0.5h,
以97%的产率得到(2S,4S,8R)-8-methyl-2-phenyl-1,7-dioxaspiro<5.5>undecan-4-yl 5-dimethyl-t-butylsilyloxy-3-hydroxy-6-enoate