tert-butyl (3-(benzyloxy)-5-(5-(2,4-difluorobenzyl)-1,3,4-thiadiazol-2-yl)-2-(methylcarbamoyl)-4-oxopyridin-1(4H)-yl)(methyl)carbamate 、
(9H-fluoren-9-yl)methyl 4-oxoazepane-1-carboxylate 在
二氯乙酸 作用下,
反应 4.0h,
生成 9H-fluoren-9-ylmethyl 7'-[5-[(2,4-difluorophenyl)methyl]-1,3,4-thiadiazol-2-yl]-5'-hydroxy-1',3'-dimethyl-4',6'-dioxospiro[azepane-4,2'-pyrido[2,1-f][1,2,4]triazine]-1-carboxylate