1: piperidin-4-one hydrochloride With N-ethyl-N,N-diisopropylamine in dichloromethane; water T=0°C; 0.0833333 h; 2: benzyl chloroformate in dichloromethane; water T=0 - 20°C; 2.33333 h;
参考文献
BIOAXONE THERAPEUTIQUE INC.
Patent: WO2005/80394 A1, 2005 ;
Location in patent: Page/Page column 122 ;
WO 2005/080394 A1