A New Flow Methodology for the Expedient Synthesis of Drug‐Like 3‐Aminoindolizines
作者:Paul P. Lange、Andrew R. Bogdan、Keith James
DOI:10.1002/adsc.201200316
日期:2012.9.17
A flow‐based synthesis of diversely functionalized indolizines and their aza‐analogues is described. These drug‐like heterocycles were generated via a tandem Sonogashira/cycloisomerization sequence, starting from widely available 2‐bromopyridines and alkynes, employing a simple catalyst system together with 1,8‐diazabicyclo[5.4.0]undec‐7‐ene (DBU) as base. The use of flow technology allows a straightforward