Exploring the ability of dihydropyrimidine-5-carboxamide and 5-benzyl-2,4-diaminopyrimidine-based analogues for the selective inhibition of L. major dihydrofolate reductase
作者:Maria Bibi、Naveeda Akhter Qureshi、Abdul Sadiq、Umar Farooq、Abbas Hassan、Nargis Shaheen、Irfa Asghar、Duaa Umer、Azmat Ullah、Farhan A. Khan、Muhammad Salman、Ahtaram Bibi、Umer Rashid
DOI:10.1016/j.ejmech.2020.112986
日期:2021.1
2,4-diamine, the impact of different amino acids (valine, tryptophan, phenylalanine, and glutamic acid) and two carbon linkers were explored (52-59). The synthesized compounds were assayed against LmDHFR. Compound 59 with the IC50 value of 0.10 μM appeared as potent inhibitors of L. major. Selectivity for parasite DHFR over human DHFR was also determined. Derivatives 55-59 demonstrated excellent selectivity
为了解决利什曼病,应寻求有效的治疗药物靶标。二氢叶酸还原酶(DHFR)被认为是治疗利什曼病的关键靶标。在当前的研究中,我们感兴趣的是设计和合成针对L. major的针对DHFR的选择性抗叶酸药物。我们专注于基于3,4-二氢嘧啶-2-一和5-(3,5-二甲氧基苄基)嘧啶-2,4-二胺基序的新型抗叶酸药物的开发。对二氢嘧啶(26-30)模板的4-苯环进行了结构活性关系(SAR)研究。对于5-(3,5-二甲氧基苄基)嘧啶-2,4-二胺,研究了不同氨基酸(缬氨酸,色氨酸,苯丙氨酸和谷氨酸)和两个碳连接基的影响(52-59)。针对Lm DHFR测定合成的化合物。化合物59与IC 50 0.10μM的值表现为的强效抑制剂硕大利什曼原虫。还确定了寄生虫DHFR相对于人DHFR的选择性。衍生物55-59对Lm DHFR具有出色的选择性。化合物56(SI = 84.5)和58(SI = 87.5)显示出对Lm