Studies of NMR Chemical Shifts of Chalcone Derivatives of Five‐membered Monoheterocycles and Determination of Aromaticity Indices
作者:Eun Jeong Jeong、In‐Sook Han Lee
DOI:10.1002/bkcs.11749
日期:2019.7
(E)‐1‐heteroaryl‐3‐arylpropen‐1‐ones. The 13C chemicalshift values (δC) of the chalcone derivatives were determined in order to find if they correlated with the Hammett σ values. A good correlation, especially for the β‐C for both series, was found for the 13C chemicalshift values (δC) of the chalcone derivatives with the Hammett σ values. The chemicalshift values of the β‐C of the heterocyclic compounds
Synthesis and biological evaluation of pyrrole-based chalcones as CYP1 enzyme inhibitors, for possible prevention of cancer and overcoming cisplatin resistance
作者:Ibidapo S. Williams、Prashant Joshi、Linda Gatchie、Mohit Sharma、Naresh K. Satti、Ram A. Vishwakarma、Bhabatosh Chaudhuri、Sandip B. Bharate
DOI:10.1016/j.bmcl.2017.07.010
日期:2017.8
Inhibitors of CYP1 enzymes may play vital roles in the prevention of cancer and overcoming chemo-resistance to anticancer drugs. In this letter, we report synthesis of twenty-three pyrrole based heterocyclic chalcones which were screened for inhibition of CYP1 isoforms. Compound 3n potently inhibited CYP1B1 with an IC50 of ∼0.2 μM in Sacchrosomes™ and CYP1B1-expressing live human cells. However, compound
Novel (E)-1-(pyrrole-2-yl)-3-(aryl)-2-(propen-1-one) derivatives as efficient singlet oxygen quenchers: kinetics and quantum chemical calculations
作者:Carlos E. Diaz-Uribe、William Vallejo、Wilmar Castellar、Jorge Trilleras、Stephanie Ortiz、Angela Rodriguez-Serrano、Ximena Zarate、Jairo Quiroga
DOI:10.1039/c5ra13203g
日期:——
Kinetics of singlet oxygen (1O2) quenching by newly synthesized chalcone derivatives with potential antioxidant applications, and DFT/MRCI calculations.
单线态氧(1O2)通过新合成的具有潜在抗氧化应用的查尔酮衍生物猝灭的动力学及DFT/MRCI计算。
Reinkhardt, M.; Mitina, V. G.; Pivnenko, N. S., Journal of general chemistry of the USSR, 1980, vol. 50, # 12, p. 2244 - 2249
作者:Reinkhardt, M.、Mitina, V. G.、Pivnenko, N. S.、Lavrushin, V. F.
DOI:——
日期:——
Design, DFT and molecular doping studies of metal complexes as a neurotransmitter modulator of autism spectrum disease in preschool children
作者:Zahraa S. Al-Garawi、Abanoub Mosaad Abdallah、Rusul S. Sabah、Mahmoud Najim Al-jibouri、Zena M.A. Tbatbaei、Gehad G. Mohamed
DOI:10.1016/j.molstruc.2023.135875
日期:2023.10
N, and S), IR, UV–visible spectra, thermal analyses,1H-and13C-NMRspectra, molar conductivity and magnetic susceptibility measurements. The results indicated a tetrahedral geometry around the zinc(II) complex and octahedral environments around the copper(II), nickel(II) and cobalt(II) complexes. The density function theory of 2-pyrazoline, L, and its metal complexes showed agreement in the gap energies
过渡金属与吡唑啉配位,利用新的吡唑啉配体 3-(2-pyrollyl)-5-(4-bromophenyl)-1 形成钴 (II)、镍 (II)、铜 (II) 和锌 (II) 的络合物-carbomathyl-2-pyrazoline (L)。配体是通过查尔酮 ( E )-3-(4-溴苯基)-1-(1H-吡咯-2-基)丙-2-en-1-酮与过量的 4-甲硫基-氨基脲的 Micheal 加成法合成的。使用薄层色谱技术分离金属配合物,并根据元素分析(C、H、N 和 S)、IR、UV-可见光谱、热分析、1 H-和 13 进行合成和表征C-NMR 光谱、摩尔电导率和磁化率测量。结果表明锌 (II) 络合物周围的四面体几何结构和铜 (II)、镍 (II) 和钴 (II) 络合物周围的八面体环境。2-吡唑啉 L 及其金属配合物的密度泛函理论表明 HOMO-LUMO 能级之间的能隙是一致的。键长 (Zn–S)