重氮甲烷 、
间苯三酚 、 alkaline earth salt of/the/ methylsulfuric acid 生成
(2R,3R)-2-(3,4-dimethoxyphenyl)-4,4',6,6'-tetramethoxy-3,2'-spirobi(2,3-dihydro[1]benzofuran) 、
(6R,6aS,11bS)-6-(3,4-dimethoxyphenyl)-1,3,9,11-tetramethoxy-6a,11b-dihydro-6H-[1]benzofuro[2,3-c]chromene 、 (2R,3R)-2-(3,4,5-trimethoxyphenyl)-4,4',6,6'-tetramethoxy-3,2'-spirobi(2,3-dihydro[1]benzofuran) 、 (6R,6aR,11bR)-6-(3,4,5-trimethoxyphenyl)-1,3,9,11-tetramethoxy-6a,11b-dihydro-6H-[1]benzofuro[2,3-c]chromene