methyl (E)-3-<(2R-2-methylethenyl-4-hydroxy-2,3-dihydrobenzofuran-5-yl)acetoxyimino>-5,6-dimethoxy-2-benzofurancarboxylate 以
吡啶 为溶剂,
反应 1.0h,
以84%的产率得到(7R)-3-(2-methoxycarbonyl-5,6-dimethoxybenzofuran-3-yl)-7-methylethenyl-7,8-dihydrofuro<2,3-g>-1,2-benzisoxazole