Synthesis, Molecular Docking and In Vitro Antimicrobial Studies of New Hexahydroindazole Derivatives of Curcumin
作者:Dileep Kumar、Harish B.G、Mayank Gangwar、Manish Kumar、Dharmendra Kumar、RaginiTilak、Gopal Nath、Ashok kumar、Sushil Kumar Singh
DOI:10.2174/157018013804725161
日期:2012.12.23
A series of hexahydroindazole analogues of curcumin were synthesized and investigated for in vitro and in
silico antimicrobial activity. The structures of synthesized compounds were identified on the basis of satisfactory
analytical and spectral data (1H NMR, 13C NMR, EI-MASS techniques and elemental analysis). Synthesized compounds
showed moderate to high activity against both bacterial and fungal strains. All compounds were docked computationally
to the active site of enzyme L-glutamine: D-fructose-6-phosphate amido-transferase [GlcN-6-P] (EC 2.6.1.16). The
autodock programme 4.0 was employed to perform automated molecular docking. (E)-1-(7-(3-methoxybenzylidene)-3-(3-
methoxyphenyl)-3,3a,4,5,6,7-hexahydro-2H-indazol-2-yl)ethanone (A7) turned out to be the most potent analogue of the
series, showing best activity against bacterial and fungal strains. Compound A7 showed minimum binding and docking
energy and may be considered as good inhibitor of GlcN-6-P synthase. Further investigation and optimization of this lead
could provide new antimicrobial molecules.
研究人员合成了一系列姜黄素的六氢吲唑类似物,并对其体外和体内抗菌活性进行了研究。根据令人满意的分析和光谱数据(1H NMR、13C NMR、EI-MASS 技术和元素分析),确定了合成化合物的结构。合成的化合物对细菌和真菌菌株均表现出中等到较高的活性。所有化合物都与 L-谷氨酰胺酶的活性位点进行了计算对接:D-果糖-6-磷酸氨基转移酶[GlcN-6-P](EC 2.6.1.16)的活性位点。采用 autodock 程序 4.0 进行自动分子对接。(结果表明,(E)-1-(7-(3-甲氧基亚苄基)-3-(3-甲氧基苯基)-3,3a,4,5,6,7-六氢-2H-吲唑-2-基)乙酮(A7)是该系列中最有效的类似物,对细菌和真菌菌株显示出最佳活性。化合物 A7 显示出最小的结合能和对接能,可视为 GlcN-6-P 合成酶的良好抑制剂。对该先导化合物的进一步研究和优化可提供新的抗菌分子。