1: With hydrogenchloride in ethanol; water 5 h; Reflux; 2: With sodium hydrogencarbonate in dichloromethane; water 0.333333 h; 3: With hydrogenchloride in ethyl acetate
参考文献
Shanghai Institute of Pharmaceutical Industry; Li, Jianqi; Zheng, Yongyong; Liao, Yunfeng; Li, Yali
Patent: US2013/72488 A1, 2013 ;
Location in patent: Paragraph 0169 ;