1.1: oxalyl dichloride; N,N-dimethyl-formamide / dichloromethane / 2 h / 20 °C 2.1: pyridine / 21 h / 20 °C 3.1: tetrakis(triphenylphosphine) palladium(0) / N,N-dimethyl-formamide / 0.17 h / 20 °C 3.2: 4 h / 120 °C 4.1: trifluoroacetic acid / dichloromethane / 3 h / 20 °C / Cooling with ice View Scheme
参考文献
Frizler, Maxim; Schmitz, Janina; Schulz-Fincke, Anna-Christina; Guetschow, Michael
Journal of Medicinal Chemistry, 2012 , vol. 55, # 12 p. 5982 - 5986