反应条件
1.1: triethylamine / 4-(N,N-dimethlyamino)pyridine / dichloromethane / 0 - 5 °C / Inert atmosphere 2.1: sodium hydrogencarbonate / ethylene glycol dimethyl ether / 25 - 85 °C / Reflux 3.1: sodium hydroxide; water / ethanol / 25 - 32 °C 3.2: 25 - 32 °C / pH 5.8 - 6.2 View Scheme
参考文献
RANBAXY LABORATORIES LIMITED; TIWARI, Anand Prakash; VERMA, Shyam Sunder; SINGH, Shravan Kumar; SINGH, Kaptan; PRASAD, Mohan
Patent: WO2011/161646 A2, 2011 ;
