反应条件
1.1: potassium tert-butylate / toluene / 78 °C / Inert atmosphere
1.2: 78 °C / Inert atmosphere
1.3: 78 °C / Inert atmosphere
2.1: zinc(II) chloride / toluene; tetrahydrofuran / 6 h / Reflux; Inert atmosphere
3.1: 1-methyl-pyrrolidin-2-one; caesium carbonate / 4 h / 50 °C / Inert atmosphere
4.1: nitric acid / chloroform / 1 h / 0 - 20 °C
5.1: boron trichloride / dichloromethane / 1 h / 0 - 20 °C
5.2: 20 °C
6.1: 4-(N,N-dimethlyamino)pyridine; N-ethyl-N,N-diisopropylamine / dichloromethane / 18 h
7.1: sodium bromide; KF*2H2O / tetrakis(triphenylphosphine) palladium(0) / toluene / 18 h / 125 °C / Inert atmosphere; sealed vessel
8.1: ammonium chloride; iron / ethanol; water; tetrahydrofuran / 1.5 h / Inert atmosphere; Reflux
View Scheme
参考文献
ABBOTT LABORATORIES; ABBOTT GMBH and CO.KG; MARING, Clarence J.; PRATT, John K.; CARROLL, William A.; LIU, Dachun; BETEBENNER, David A.; HUTCHINSON, Douglas K.; TUFANO, Michael D.; ROCKWAY, Todd W.; SCHOEN, Uwe; PAHL, Axel; WITTE, Adreas
Patent: WO2012/87833 A1, 2012 ;
WO 2012/087833 A1