methyl (3R,5R)-(E)-3-<(tert-butyldimethylsilyl)oxy>-5-hydroxy-7-(1,2,3,4-tetrahydro-1-naphthylidene)heptanoate 在
氢氟酸 作用下,
以
乙腈 为溶剂,
反应 2.0h,
以52%的产率得到(4R,6R)-(E)-4-hydroxy-6-<2-(1,2,3,4-tetrahydro-1-naphthylidene)ethyl>-3,4,5,6-tetrahydro-2H-pyran-2-one