4a,5,6,7,8,8aα-hexahydro-5β-methoxy-4aβ-methyl-2(1H)-naphthalenone-3-carboxaldehyde 、
(E)-3-methyl-4-methoxy-2-[(trimethylsilyl)oxy]-1,3-butadiene 生成 (4aR,4bS,5R,8aR,10R,10aS)-10-hydroxy-10a-(hydroxymethyl)-5-methoxy-4b-methyl-4a,5,6,7,8,8a,9,10-octahydro-4H-phenanthren-3-one