Isolation, structure elucidation, and synthesis of antiplasmodial quinolones from Crinum firmifolium
作者:Christopher C. Presley、Yongle Du、Seema Dalal、Emilio F. Merino、Joshua H. Butler、Stéphan Rakotonandrasana、Vincent E. Rasamison、Maria B. Cassera、David G.I. Kingston
DOI:10.1016/j.bmc.2017.06.017
日期:2017.8
admixture and therefore was synthesized to confirm its structure as a new antiplasmodial compound. Along with 5, two other new and branched compounds 6 and 7 were synthesized as well. Accompanying the five quinolones were two known compounds 2 and 3 which are inactive against Plasmodium falciparum. The isolation, structure elucidation, total synthesis, and biological evaluation of these compounds are discussed
马达加斯加的Crinum firmifolium的抗血浆生物测定指导的分离导致了7种化合物的分离。七个化合物中的五个被确定为具有变化的侧链的2-烷基喹啉-4(1 H)-。化合物1和4被确定为是已知的化合物与报道抗疟原虫活性,而5被认为是一个新的支链2- alkylquinolin-4(1 ħ) -酮,但是,它在数量有限并且在混合物中分离,并且因此是合成以确认其结构为新的抗疟原虫化合物。与5一起,另外两个新的和分支的化合物6和7也被合成了。五个喹诺酮类药物伴随着两种已知的对恶性疟原虫无活性的化合物2和3。本文讨论了这些化合物的分离,结构阐明,全合成和生物学评估。