(9aS)-8-acetyl-1,7-dihydroxy-3-methoxy-9a-methyl-9-oxo-9,9a-dihydrodibenzo[b,d]furan-4-carboxamide 、
2,3-Dimethylnaphthalin-1-aldehyd 、
三乙基硅烷 、
三氟乙酸 以
乙腈 为溶剂,
以to give the target compound (23.2 g, yield: 95%) as a yellow solid的产率得到(9aS)-8-acetyl-1, 7-dihydroxy-3-methoxy-9a-methyl-N-[(2,3-dimethyl-1-naphthyl)methyl]-9-oxo-9,9a-dihydrodibenzo[b,d]furan-4-carboxamide