trifluoroacetate 4-[3-hydroxy-2-methoxycarbonyl-9-(5-methyl-1,1-dioxo-[1,2,5]thiadiazolidin-2-yl)-4-oxo-4H-pyrido[1,2-a]pyrimidin-7-yl]-1-methyl-piperazin-1-ium 、
对氟苄胺 以
甲醇 为溶剂,
反应 15.0h,
以39%的产率得到3-hydroxy-9-(5-methyl-1,1-dioxo-[1,2,5]thiadiazolidin-2-yl)-7-(4-methyl-piperazin-1-yl)-4-oxo-4H-pyrido[1,2-a]pyrimidine-2-carboxylic acid 4-fluoro-benzylamide