作者:Xiaohua Zhu、Kurt S. Van Horn、Megan M. Barber、Sihyung Yang、Michael Zhuo Wang、Roman Manetsch、Karl A. Werbovetz
DOI:10.1016/j.bmc.2015.02.020
日期:2015.8
previously been examined for their antileishmanial activity were evaluated for their potency and selectivity against Leishmania donovani, the causative parasite of visceral leishmaniasis. Quinazoline-2,4-diamines with aromatic substituents at both N2 and N4 exhibited potent in vitro antileishmanial activity but relatively low selectivity, while compounds substituted with small alkyl groups at either N2
内脏利什曼病是一种被忽视的寄生虫病,在没有治疗的情况下死亡率很高。廉价,口服活性和有效的新药可能是对抗这种疾病的有用工具。我们以前表明,N 2,N 4-二取代的喹唑啉-2,4-二胺对细胞内利什曼原虫和铅化合物N 4-(呋喃-2-基甲基)-N 2-异丙基-7表现出低至亚微摩尔的效价。-甲基喹唑啉-2,4-二胺(4)在内脏利什曼病的急性小鼠模型中显示适度的功效。在本工作中,31 N 2,N评估了以前未检查过抗霉菌活性的4-二取代喹唑啉-2,4-二胺对内脏利什曼病的致病性寄生虫利什曼原虫的效力和选择性。在N 2和N 4处均具有芳族取代基的喹唑啉2,4-二胺显示出有效的体外抗菌活性,但选择性相对较低,而在N 2或N 4处被小烷基取代的化合物通常显示出较低的抗菌活性,但较少对鼠巨噬细胞系有毒。根据他们的体外抗农杆菌效力,N 4选择-苄基-N 2-(4-氯苄基)喹唑啉-2,4-二胺(15)和N 2-苄基-N