Synthesis and Evaluation of Imidazo[1,2‐<i>a</i>]pyridine Analogues of the ZSTK474 Class of Phosphatidylinositol 3‐Kinase Inhibitors
作者:Swarna A. Gamage、Julie A. Spicer、Kit Y. Tsang、Patrick D. O'Connor、Jack U. Flanagan、Woo‐Jeong Lee、James M. J. Dickson、Peter R. Shepherd、William A. Denny、Gordon W. Rewcastle
DOI:10.1002/asia.201801762
日期:2019.4.15
Using a scaffold‐hopping approach, imidazo[1,2‐a]pyridine analogues of the ZSTK474 (benzimidazole) class of phosphatidylinositol 3‐kinase (PI3K) inhibitors have been synthesized for biological evaluation. Compounds were prepared using a heteroaryl Heck reaction procedure, involving the palladium‐catalysed coupling of 2‐(difluoromethyl)imidazo[1,2‐a]pyridines with chloro, iodo or trifluoromethanesulfonyloxy
Regio- and chemoselective magnesiation of protected uracils and thiouracils using TMPMgCl·LiCl and TMP2Mg·2LiCl
作者:Marc Mosrin、Nadège Boudet、Paul Knochel
DOI:10.1039/b812528g
日期:——
Two successive regio- and chemoselective magnesiations using TMPMgCl x LiCl and TMP(2)Mg x 2 LiCl enable the full functionalization of protected uracils and thiouracils in good to excellent yields.
使用TMPMgCl x LiCl和TMP(2)Mg x 2 LiCl的两个连续的区域选择性和化学选择性放大倍数可以使被保护的尿嘧啶和硫尿嘧啶完全功能化,并具有良好的收率。