The first synthesis of an N-quaternary salt of a naphthylisoquinoline alkaloid, N,N-dimethyldioncophyllinium A iodide, is described. For this potential natural product, a degradative procedure for the unambiguous stereoanalysis of the stereogenic centers has been elaborated. It shows enhanced anti-plasmodial activity in vitro towards Plasmodium falciparum erythrocytic forms, as compared to its less methylated precursors.
本研究首次合成了一种
萘基
异喹啉生物碱的 N-季
铵盐--N,N-二甲基二月叶碱 A
碘化物。针对这种潜在的
天然产物,我们详细阐述了一种降解程序,用于对立体中心进行明确的立体分析。与甲基化程度较低的前体相比,它在体外对恶性疟原虫红细胞形式的抗疟活性更强。