Anticoccidial derivatives of 6-azauracil. 4. A 1000-fold enhancement of potency by phenyl sulfide and phenyl sulfone side chains
作者:Max W. Miller、Banavara L. Mylari、Harold L. Howes、Sanford K. Figdor、Martin J. Lynch、John E. Lynch、Shyam K. Gupta、Larry R. Chappel、Richard C. Koch
DOI:10.1021/jm00143a015
日期:1981.11
We report further progress in exploiting our earlier discovery that the anticoccidial activity of 6-azauracil increases markedly when appropriately substituted benzyl or phenyl groups are attached at N-1. With guidance from previous structure-activity relationships and a multiple linear regression analysis, 6-azauracils containing phenyl sulfone or phenyl sulfide side chains were prepared. These prevented
我们报道了在利用我们较早的发现中的进一步进展,即当适当取代的苄基或苯基连接在N-1处时,6-氮杂嘧啶的抗球虫活性显着增加。在先前的结构-活性关系和多重线性回归分析的指导下,制备了含有苯砜或苯硫醚侧链的6-氮杂嘧啶。这些可以防止鸡中按重量计最低抑菌浓度的球虫球菌感染,其最低抑菌浓度为0.25 ppm(重量),比6-氮杂尿嘧啶提高了4000倍,并且血浆半衰期比早期有效的类似物短。硫化物比砜更有效,尽管它们在体内迅速被氧化成砜。