[6-(hydroxymethyl)-5,7-dimethoxy-2',2'-dimethyl-4-(2-methylpropyl)spiro[3,4-dihydrochromene-2,3'-bicyclo[3.2.0]heptane]-8-yl]methanol 生成
5,7-Dihydroxy-2',2'-dimethyl-4-(2-methylpropyl)spiro[3,4-dihydrochromene-2,3'-bicyclo[3.2.0]heptane]-6,8-dicarbaldehyde