sulfuric acid; trifluoroacetic acid in methoxybenzene T=20°C; 3 h;
参考文献
ASTEX THERAPEUTICS LIMITED; THE INSTITUTE OF CANCER RESEARCH:ROYAL CANCER HOSPITAL; CANCER RESEARCH TECHNOLOGY LIMITED
Patent: WO2007/125321 A2, 2007 ;
Location in patent: Page/Page column 157-158 ;
WO 2007/125321 A2