1.1: hydrogenchloride; hydroxylamine hydrochloride; sodium sulfate / water / 2 h / 90 °C
1.2: 2 h / 90 °C
2.1: sulfuric acid / 1.5 h / 65 - 90 °C
View Scheme
参考文献
GLAXOSMITHKLINE LLC; BROOKS, Carl, A.; CHEUNG, Mui; EIDAM, Hilary, S.; FOX, Ryan, M.; HILFIKER, Mark, A.; MANAS, Eric, S.; YE, Guosen
Patent: WO2011/119701 A1, 2011 ;
WO 2011/119701 A1