Design, synthesis and anti-P. falciparum activity of pyrazolopyridine–sulfonamide derivatives
作者:Thais B. Silva、Alice M.R. Bernardino、Maria de Lourdes G. Ferreira、Kamilla R. Rogerio、Leonardo J.M. Carvalho、Nubia Boechat、Luiz C.S. Pinheiro
DOI:10.1016/j.bmc.2016.07.049
日期:2016.9
1-phenyl-1H-pyrazolo[3,4-b]pyridine derivatives connected by a linker group to benzenesulfonamide moieties with different substituents in the 4-position were synthesized and assayed against Plasmodium falciparum. These ten compounds exhibited activity in vitro against the chloroquine-resistant clone W2 with IC50 values ranging from 3.46 to 9.30μM. The most active derivatives with substituent R2=Cl or CH3 at the benzenesulfonamide
合成了十个通过连接基团连接到在4-位具有不同取代基的苯磺酰胺部分的1-苯基-1H-吡唑并[3,4-b]吡啶衍生物,并针对恶性疟原虫进行了测定。这十种化合物在体外表现出对耐氯喹克隆W2的活性,IC50值为3.46至9.30μM。在苯磺酰胺部分具有取代基R2 = Cl或CH3的活性最高的衍生物表现出最低的IC50。在1H-吡唑并[3,4-b]吡啶环的5位上具有R1 = CO2Et取代基的化合物比具有CN取代基的化合物具有较低的活性。1H-吡唑并[3,4-b]吡啶系统作为克服疟原虫抗药性的抗疟药,有望用于进一步研究。