乙酸酐 、
1-[3-Acetyl-6-hydroxy-4-(4-methoxy-phenyl)-1-methyl-1,9a-dihydro-4H-benzo[4,5]furo[2,3-b]pyridin-4a-yl]-ethanone 在
吡啶 作用下,
反应 2.0h,
以80%的产率得到Acetic acid 3,4a-diacetyl-4-(4-methoxy-phenyl)-1-methyl-1,4,4a,9a-tetrahydro-benzo[4,5]furo[2,3-b]pyridin-6-yl ester