Design, Synthesis, <i>In Silico</i> and <i>In Vitro</i> Studies of Substituted 1, 2, 3, 4- Tetrahydro Pyrimidine Phosphorus Derivatives
作者:Kilaru Babu、Yellapu Kumar、Aminedi Raghavendra、Venukadasula Phanindra、Golla Madhava、Nuchu Ravi、Matcha Bhaskar、Chamarthi Raju
DOI:10.2174/1386207318666150525093659
日期:2015.10.21
Molecular docking studies of the designed two series (4a-l, 6a-l, 9 and 10) of novel substituted phosphorylated
1, 4-dihydropyridine and 1,2,3,4-tetrahydropyrimidine derivatives against the drug targets of DHFR from Bacillus cereus,
LpxC from Pseudomonas aeruginosa, IDH from E. coli and MurB from Staphylococcus aureus were encouraged for their
synthesis. These compounds were synthesized from substituted aromatic aldehydes, thiourea/urea and ethyl acetoacetate
in the presence of polyphosphoric acid (PPA). These were further phosphorylated with diethyl (2-chloroethoxy) methyl
phosphonate to get the desired products. In vitro anti-bacterial activity against the specified bacterial strains related to
docked protein exhibited good inhibitory activity at different dose concentrations. Quantitative Structure Activity
Relationship (QSAR) descriptors of the designed structures have demonstrated their satisfactory drug like properties. The
results from Molecular Docking, QSAR descriptors and in vitro anti-bacterial activities led to the identification of safer
and potential antibacterial agents of the title compounds screened. Compounds 4a, 4d, 4i, 6a, 6d, 9 and 10 were found to
be potent antibacterial agents.
设计的两系列新型取代磷酸化的1,4-二氢吡啶和1,2,3,4-四氢嘧啶衍生物(4a-l,6a-l,9和10)与来自蜡样芽胞杆菌的DHFR、来自铜绿假单胞菌的LpxC、来自大肠杆菌的IDH和来自金黄色葡萄球菌的MurB的药物靶点进行分子对接研究,以促进其合成。这些化合物是由取代芳香醛、硫脲/尿素和乙酰乙酸乙酯在聚磷酸(PPA)的存在下合成的。随后,这些化合物与二乙基(2-氯乙氧基)甲基磷酸酯进行磷酸化以获得所需产品。针对指定细菌株的体外抗菌活性实验表明,在不同剂量浓度下具有良好的抑制活性。设计结构的定量构效关系(QSAR)描述符显示出它们令人满意的药物相似性。分子对接、QSAR描述符和体外抗菌活性实验的结果使得筛选出更安全且潜在的抗菌剂。化合物4a、4d、4i、6a、6d、9和10被发现是强效抗菌剂。