Design, synthesis and QSAR studies of 2-amino benzo[d]thiazolyl substituted pyrazol-5-ones: novel class of promising antibacterial agents
作者:Mahesh B. Palkar、Aniket Patil、Girish A. Hampannavar、Mahamadhanif S. Shaikh、Harun M. Patel、Ashish M. Kanhed、Mange Ram Yadav、Rajshekhar V. Karpoormath
DOI:10.1007/s00044-017-1898-6
日期:2017.9
5-dihydro-5-oxo-pyrazole-1-carboxamide (4a–d) with p-substituted benzaldehydes. The Infrared Spectroscopy, 1H-Nuclear Magnetic Resonance, 13C-Nuclear Magnetic Resonance, and High Resolution Mass Spectra spectral data confirmed the structures of all the novel synthesized compounds. Among the series tested, two compounds 5k and 5o displayed promising antibacterial activity especially against Staphylococcus
摘要3-(4-取代的亚苄基氨基)-N-(6-取代的-1,3-苯并[ d ]噻唑-2-基)-4,5-二氢-5-氧代-吡唑-1-羧酰胺的新类似物(通过3-氨基-N-(6-取代的1,3-苯并[ d ]噻唑-2-基)-4,5-二氢-5-氧代吡唑-1-的反应设计合成5a - s)甲酰胺(4a – d)与对位取代的苯甲醛。红外光谱,1 H-核磁共振,13 C-核磁共振和高分辨率质谱光谱数据证实了所有新合成化合物的结构。在测试的系列中,两种化合物5k和5o表现出有希望的抗菌活性,尤其是分别对金黄色葡萄球菌(MIC = 3.14和1.57 µg / mL)和枯草芽孢杆菌(MIC = 3.12和1.84 µg / mL)。此外,还使用3-(4,5-二甲基噻唑-2-基)-2,5-二苯基-四唑溴化物测定法评估了这些标题化合物对哺乳动物Vero细胞系的细胞毒性活性(IC 50),表明该化合物在非细胞毒性浓度下表现