4-chloropyrido[3,2-d]pyrimidine-7-carbonitrile 、 tert-butyl N-[(1R,2R,5S)-2-(5-amino-2-fluorophenyl)-5-(fluoromethyl)-2-methyl-8,8-dioxo-8-thia-3-azabicyclo[3.2.1]oct-3-en-4-yl]-N-tert-butoxycarbonylcarbamate 在
对甲苯磺酸 作用下,
以
异丙醇 为溶剂,
反应 5.0h,
生成 4-((3-((1S,2R,5R)-4-amino-5-(fluoromethyl)-2-methyl-8,8-dioxido-8-thia-3-azabicyclo[3.2.1]oct-3-en-2-yl)-4-fluorophenyl)amino)pyrido[3,2-d]pyrimidine-7-carbonitrile