1: With chloroformic acid ethyl ester; triethylamine in tetrahydrofuran T=-15°C; 0.166667 h; 2: With ammonium hydroxide; hydrogen in tetrahydrofuran T=0°C; 2 h; 3: With palladium on activated carbon in methanol 3 h;
参考文献
ASTRAZENECA AB; ASTRAZENEKA UK LIMITED
Patent: WO2005/26156 A1, 2005 ;
Location in patent: Page/Page column 124-125 ;
WO 2005/026156 A1