(9aS)-8-acetyl-1,7-dihydroxy-3-methoxy-9a-methyl-9-oxo-9,9a-dihydrodibenzo[b,d]furan-4-carboxamide 、
2,3,5,6-tetramethyl-4-(2-pentynyloxy)benzaldehyde 、
三乙基硅烷 、
三氟乙酸 以
乙腈 为溶剂,
以to give the target compound (0.549 g, yield: 66%) as a yellow solid的产率得到(9aS)-8-acetyl-1,7-dihydroxy-3-methoxy-9a-methyl-9-oxo-N-[2,3,5,6-tetramethyl-4-(2-pentynyloxy)benzyl]-9,9a-dihydrodibenzo[b,d]furan-4-carboxamide