The present invention provides 2-pyrimidinyl pyrazolopyridine compounds, compositions containing the same, as well as processes for the preparation and their use as pharmaceutical agents.
A facile and efficient method for the synthesis of alkynone by carbonylative Sonogashira coupling using CHCl<sub>3</sub>as the CO source
作者:Guanglong Sun、Min Lei、Lihong Hu
DOI:10.1039/c6ra02424f
日期:——
A facile and efficient method for the synthesis of alkynones by a Pd-catalyzed carbonylative Sonogashira coupling reaction starting from aryl iodide, terminal alkyne and chloroform (CHCl3) as the CO source is described. This procedure proves that CHCl3 is a cheap and efficient CO source in the presence of CsOH·H2O as the base. Furthermore, it is applied successfully for the modification of natural
The present invention provides 2-pyrimidinyl pyrazolopyridine compounds, compositions containing the same, as well as processes for the preparation and their use as pharmaceutical agents.