反应条件
1: calcium chloride; sodium tetrahydroborate / ethanol; tetrahydrofuran / 21.5 h / -10 - 7 °C 2: N-ethyl-N,N-diisopropylamine; methanesulfonyl chloride; sodium carbonate / tetrahydrofuran / 8 h / 25 °C View Scheme
参考文献
TAKEDA PHARMACEUTICAL COMPANY LIMITED; KAWABATA, Yoichi; SAWAI, Yasuhiro; KANNO, Kazuaki; SAWADA, Naotaka
Patent: WO2012/173280 A1, 2012 ;
