Synthesis and Biological Studies of Novel Biphenyl-3,5-dihydro-2H-thiazolopyrimidines Derivatives
作者:S. Maddila、G.L.V. Damu、E.O. Oseghe、O.A. Abafe、C. Venakata Rao、P. Lavanya
DOI:10.5012/jkcs.2012.56.3.334
日期:2012.6.20
A new series of ethyl 2-(4-substitutedbenzylidene)-5-(3'-(ethoxycarbonyl)biphenyl-4-yl)-7-methyl-3-oxo-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate derivatives ($\mathbf8a-j}$) were synthesized. The newly synthesized compounds were characterized by $\mathbfIR}$, $^1\mathbfH}$ $\mathbfNMR}$, $^13}\mathbfC}$ $\mathbfNMR}$, $\mathbfLCMS}$ $\mathbfmass}$ and $\mathbfC}$, $\mathbfH}$, $\mathbfN}$ analyses. All newly synthesized compounds were screened for their In vitro antioxidant activity (Scavenging of hydrogen peroxide, Scavenging of nitric oxide radical, and Lipid peroxidation inhibitory activity), antibacterial (Escheria coli, Pseudonmonas aeruginosa (gram-negative bacteria), Bacillus subtillis, Staphylococcus aureus (gram-positive bacteria)) and antifungal (Candida albicans Aspergillus niger) studies.
合成了一系列乙基2-(4-取代苯亚甲基)-5-(3'-(乙氧羰基)联苯-4-基)-7-甲基-3-氧代-3,5-二氢-2H-噻唑[3,2-a]嘧啶-6-羧酸酯衍生物(8a-j)。使用IR、1H NMR、13C NMR、LCMS质谱和C、H、N元素分析对新合成的化合物进行了表征。对所有新合成的化合物进行了体外抗氧化活性(过氧化氢清除、一氧化氮自由基清除和脂质过氧化抑制活性)、抗菌(大肠杆菌、铜绿假单胞菌(革兰氏阴性菌)、枯草芽孢杆菌、金黄色葡萄球菌(革兰氏阳性菌))和抗真菌(白色念珠菌、黑曲霉)研究筛选。