7-[4-(tert-butyldimethylsilanyloxy)-5,5-difluoro-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl]-1-cyclopropyl-6-fluoro-8-methyl-1H-quinazolinedione 在
四丁基氟化铵 作用下,
以
四氢呋喃 、
乙酸乙酯 为溶剂,
生成
1-Cyclopropyl-7-(5,5-difluoro-4-hydroxy-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)-6-fluoro-8-methyl-1H-quinazolinedione