1: With chloroformic acid ethyl ester; triethylamine in water; acetone T=0°C; 0.5 h; 2: With sodium azide in water; acetone T=0°C; 1 h; 3: With hydrogenchloride; tert-butyl alcohol more than 3 stages;
参考文献
SCHERING CORPORATION; PHARMACOPEIA DRUG DISCOVERY, INC.
Patent: WO2005/68460 A1, 2005 ;
Location in patent: Page/Page column 243 ;
WO 2005/068460 A1
