(9aS)-8-acetyl-1,7-dihydroxy-3-methoxy-9a-methyl-9-oxo-9,9a-dihydrodibenzo[b,d]furan-4-carboxamide 、
4-[(2-butynyloxy)methyl]2,3,6-trimethylbenzaldehyde 、
三乙基硅烷 、
三氟乙酸 以
乙腈 为溶剂,
以to give the target compound (0.200 g, yield: 44%) as a yellow solid的产率得到(9aS)-8-acetyl-N-{4-[(2-butynyloxy)methyl]-2,3,6-trimethylbenzyl}-1,7-dihydroxy-3-methoxy-9a-methyl-9-oxo-9,9a-dihydrodibenzo[b,d]furan-4-carboxamide