Synthesis and antimicrobial activity of novel 2-(pyridin-2-yl)thieno[2,3-d]pyrimidin-4 (3H)-ones
作者:NITIN G. HASWANI、SANJAYKUMAR B. BARI
DOI:10.3906/kim-1012-888
日期:——
In the present study, some new 2-(pyridin-2-yl)thieno[2,3-d] pyrimidin-4(3H)-ones derivatives (IIa-o) were synthesized. The target compounds (IIa-o) were synthesized through the acid catalyzed condensation of 2-cyano, 3-cyano, and 4-cyano-pyridines with various 2-amino-3-carbethoxythiophenes (Ia-e). All thiophene derivatives were synthesized by Gewald reaction. The structures of the newly synthesized compounds were confirmed by UV-Visible, FT-IR, ^1H-NMR, and mass spectral studies. All synthesized compounds were evaluated for their antimicrobial activity against various gram-positive and gram-negative bacterial and fungal strains. Amongst the synthesized compounds IIa, IIb, IId, IIe, and IIm were found to be active.
在本研究中,合成了一些新的2-(吡啶-2-基)噻吩[2,3-d]嘧啶-4(3H)-酮衍生物(IIa-o)。目标化合物(IIa-o)是通过2-氰基、3-氰基和4-氰基吡啶与各种2-氨基-3-乙氧基噻吩(Ia-e)进行酸催化缩合合成的。所有噻吩衍生物均通过Gewald反应合成。新合成化合物的结构通过紫外-可见光谱、傅里叶变换红外光谱、^1H-NMR和质谱分析得到了确认。所有合成化合物均被评估其针对各种革兰阳性和革兰阴性细菌及真菌菌株的抗微生物活性。在合成的化合物中,发现IIa、IIb、IId、IIe和IIm具有活性。