Synthesis and antimalarial evaluation of novel benzopyrano[4,3-b]benzopyran derivatives
作者:Ruth Devakaram、David StC. Black、Katherine T. Andrews、Gillian M. Fisher、Rohan A. Davis、Naresh Kumar
DOI:10.1016/j.bmc.2011.07.009
日期:2011.9
7-Methoxyflavenes and 5,7,8-trimethoxyflavenes were found to undergo stereoselective acid-catalyzed rearrangement to generate the benzopyrano[4,3-b]benzopyran ring system present in the natural product, dependensin. Dependensin and its analogs were subjected to antimalarial growth inhibition assays against Plasmodium falciparum and found to have IC50 values ranging between 1.9 and 3.9 μM.
发现7-甲氧基黄酮和5,7,8-三甲氧基黄酮经历了立体选择性酸催化的重排,以产生存在于天然产物依赖素中的苯并吡喃并[4,3- b ]苯并吡喃环系统。Dependensin及其类似物经过了针对恶性疟原虫的抗疟疾生长抑制测定,结果发现IC 50值在1.9和3.9μM之间。