对乙酰胺基苯磺酰氯 、
3-(9-hydroxy-8-methyl-1,5-dihydro-[1,3]dioxepino[5,6-c]pyridin-3-yl)-8-methyl-1,5-dihydro-[1,3]dioxepino[5,6-c]pyridin-9-ol 在
potassium tert-butylate 作用下,
以
四氢呋喃 为溶剂,
反应 0.5h,
以53.1%的产率得到3-[9-(4-acetylaminophenylsulfonyloxy)-1,5-dihydro-8-methyl-3H-[1,3]dioxepino[5,6-c]pyridin-3-yl]-9-(4-acetylaminophenylsulfonyloxy)-1,5-dihydro-8-methyl-3H-[1,3]dioxepino[5,6-c]pyridine