Facile, eco-friendly, one-pot protocol for the synthesis of indole-imidazole derivatives catalyzed by amino acids
作者:Sadia Naureen、Fatima Ijaz、Areesha Nazeer、Faryal Chaudhry、Munawar Ali Munawar、Misbahul Ain Khan
DOI:10.1080/00397911.2017.1332766
日期:2017.8.18
ABSTRACT An efficient, convenient green approach for the synthesis of indole-based 2,4,5-trisubstituted and 1,2,4,5-tetrasubstituted imidazoles by multicomponent reaction of substituted 2-arylindole-3-carbaldehydes, benzil, substituted anilines, and ammonium acetate using catalytic amino acid (glycine) in ethanol is described. Several amino acids have also been evaluated as organic catalysts for these
Atroposelective Synthesis of Planar‐Chiral Indoles via Carbene Catalyzed Macrocyclization
作者:Gongming Yang、Yi He、Tianyi Wang、Zhipeng Li、Jian Wang
DOI:10.1002/anie.202316739
日期:2024.1.15
atroposelective synthesis of macrocyclic planar-chiral indoles via NHC-catalyzed intramolecular macrocyclization is reported. In addition, the indole-based macrocycles bearing both planar and axial chirality have also been constructed via kinetic resolution. Importantly, these obtained planar-chiral macrocycles provide additional possibilities to develop novel catalysts or ligands, as well as newreactions.
Discovery of indole-based tetraarylimidazoles as potent inhibitors of urease with low antilipoxygenase activity
作者:Sadia Naureen、Faryal Chaudhry、Nadia Asif、Munawar Ali Munawar、Muhammad Ashraf、Faizul Hassan Nasim、Humera Arshad、Misbahul Ain Khan
DOI:10.1016/j.ejmech.2015.08.011
日期:2015.9
A series of tetraarylimidazoles (5A-5O) were prepared by one pot four component condensation reactions of 2-arylindole-3-carbaldehydes, substituted anilines, benzil and ammonium acetate in acetic acid. The synthesized compounds exhibited potent antiurease activity with IC50 values ranging from 0.12 +/- 0.06 mu M to 29.12 +/- 0.18 mu M as compared with thiourea. However, low inhibition profiles were observed for lipoxygenase. The data show that tetraarylimidazoles containing a substituted 2-penylindole have emerged as a new class of potent inhibitors of urease enzyme. (C) 2015 Elsevier Masson SAS. All rights reserved.
SYNTHESIS OF TETRASUBSTITUTD IMIDAZOLES CONTAINING INDOLE AND THEIR ANTIUREASE AND ANTIOXIDANT ACTIVITIES
作者:SADIA NAUREEN、FATIMA IJAZ、MUNAWAR ALI MUNAWAR、NADIA ASIF、FARYAL CHAUDHRY、MUHAMMAD ASHRAF、MISBAHUL AIN KHAN
DOI:10.4067/s0717-97072017000303583
日期:——
Triarylimidazoles-synthesis of 3-(4,5-diaryl-1H-imidazol-2-yl)-2-phenyl-1H-indole derivatives as potent α-glucosidase inhibitors
作者:Sadia Naureen、Shazia Noreen、Areesha Nazeer、Muhammad Ashraf、Umber Alam、Munawar Ali Munawar、Misbahul Ain Khan
DOI:10.1007/s00044-014-1239-y
日期:2015.4
A series of new trisubstituted imidazoles-3-(4,5-diaryl-1H-imidazol-2-yl)-2-phenyl-1H-indole derivatives (2a-2u) were synthesized and evaluated for their alpha-glucosidase inhibition. The new compounds showed significant alpha-glucosidase inhibitory activity as compared to the standard inhibitor acrabose. Structures of synthesized compounds were determined using FT-IR, Mass spectrometry, H-1 NMR, C-13 NMR, and elemental analyses.