Synthesis of branched 9-[2-(2-phosphonoethoxy)ethyl]purines as a new class of acyclic nucleoside phosphonates which inhibit Plasmodium falciparum hypoxanthine–guanine–xanthine phosphoribosyltransferase
作者:Dana Hocková、Antonín Holý、Milena Masojídková、Dianne T. Keough、John de Jersey、Luke W. Guddat
DOI:10.1016/j.bmc.2009.07.044
日期:2009.9.1
the salvage enzyme, hypoxanthine–guanine–xanthine phosphoribosyltransferase (HGXPRT), for the synthesis of the 6-oxopurine nucleoside monophosphates. Specific acyclic nucleoside phosphonates (ANPs) inhibit PfHGXPRT and possess anti-plasmodial activity. Two series of novel branched ANPs derived from 9-[2-(2-phosphonoethoxy)ethyl]purines were synthesized to investigate their inhibition of PfHGXPRT and
疟疾寄生虫恶性疟原虫(Pf)缺乏从头途径,并且依赖挽救酶次黄嘌呤-鸟嘌呤-黄嘌呤磷酸核糖基转移酶(HGXPRT)来合成6-氧代嘌呤核苷一磷酸。特定的无环核苷膦酸酯(ANP)抑制Pf HGXPRT并具有抗疟原虫活性。合成了两个系列的9- [2-(2-膦酰基乙氧基)乙基]嘌呤衍生的新型支链ANP,以研究其对Pf HGXPRT和人HGPRT的抑制作用。Pf HGXPRT的最佳抑制剂具有K i1μM。数据表明,疏水取代基的位置和性质都改变了ANP的效能和选择性。