作者:Carlos Jaramillo、Juan Carlos Carretero、J.Eugenio de Diego、Miriam del Prado、Chafiq Hamdouchi、José Luis Roldán、Concha Sánchez-Martı́nez
DOI:10.1016/s0040-4039(02)02278-5
日期:2002.12
A convenient synthesis of 3,6-disubstituted-2-aminoimidazo[1,2-a]pyridines 3 is described. A halogen-metal exchange Study on building block 1 showed that use of i-propyl magnesium chloride is most effective for chemoselective functionalization at position 6. Further regiospecific metalation at position 3, followed by quenching with different electrophiles, afforded target compounds. (C) 2002 Elsevier Science Ltd. All rights reserved.