(1R,4R,12aR)-7-(benzyloxy)-2,2-difluoro-6,8-dioxo-N-(2,4,6-trifluorobenzyl)-1,2,3,4,6,8,12,12a-octahydro-1,4-methanodipyrido[1,2-a:1',2'-d]pyrazine-9-carboxamide 在
三氟乙酸 作用下,
反应 0.17h,
以67.5%的产率得到(1R,4R,12aR)-2,2-difluoro-7-hydroxy-6,8-dioxo-N-(2,4,6-trifluorobenzyl)-1,2,3,4,6,8,12,12a-octahydro-1,4-methanodipyrido[1,2-a: 1',2'-d]pyrazme-9-carboxamide