(E)-1-[(4S,7S)-4-(tert-butyl-diphenyl-silanyloxy)-7-methyl-7-vinyl-4,5,6,7-tetrahydro-isobenzofuran-1-yl]-3-(2,5-dimethoxy-phenyl)-prop-2-en-1-ol 在
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
以85%的产率得到(4S,7S)-4,5,6,7-tetrahydro-1-((E)-1-hydroxy-3-(2,5-dimethoxyphenyl)allyl)-7-methyl-7-vinylisobenzofuran-4-ol