Design, Synthesis, and Evaluation of the Multidrug Resistance-Reversing Activity of <scp>d</scp>-Glucose Mimetics of Hapalosin
作者:Tam Q. Dinh、Charles D. Smith、Xiaohui Du、Robert W. Armstrong
DOI:10.1021/jm970709p
日期:1998.3.1
When five substituents of hapalosin were placed on D-glucose, molecular modeling revealed that the substituents on mimetics 2 and 3 occupy similar spatial positions as the corresponding substituents on hapalosin. Mimetic 3 and all the glucopyranoside intermediates generated in its synthesis were assessed for their ability to reverse multidrug resistance (MDR) mediated by P-glycoprotein (P-gp) or the
当将碱性磷酸酶的五个取代基置于D-葡萄糖上时,分子模拟表明,模拟物2和3上的取代基与碱性磷酸酶上的相应取代基占据相似的空间位置。评估模拟物3及其合成中产生的所有吡喃葡萄糖苷中间体的逆转由P-糖蛋白(P-gp)或与多药耐药相关的蛋白质(MRP)介导的多药耐药(MDR)的能力。在使用MCF-7 / ADR细胞进行的细胞毒性和药物蓄积分析中,没有任何一种糖化合物能像哈波菌素一样有效地抑制P-gp。相比之下,在用HL-60 / ADR细胞进行的细胞毒性试验中,四种D-葡萄糖化合物在拮抗MRP方面显示出与哈帕辛相似的功效。