1: in DMF (N,N-dimethyl-formamide) T=145°C; 5 h; 2: With hydrogenchloride; anhydrous iron chloride in DMF (N,N-dimethyl-formamide); water T=60°C; 0.333333 h;
参考文献
Sumitomo Pharmaceuticals Company, Limited
Patent: EP1500643 A1, 2005 ;
Location in patent: Page 32 ;
EP 1500643 A1