Molecular structure, optoelectronic properties, spectroscopic (FT-IR, FT-Raman and UV–Vis), H-BDE, NBO and drug likeness investigations on 7, 8-benzocoumarin-4-acetic acid (7BAA)
摘要:
Experimental and theoretical spectroscopic studies were performed for the 7, 8-benzocoumarin-4-acetic acid (7BAA). The research work was performed in two levels. In the first level, experimental FT-IR, FT-Raman and UV-Vis spectral data were recorded. In the next level, the theoretical computations have been conducted from DFT\B3LYP\6-311++G (d, p) basis level. Initially theoretical geometrical parameters were obtained and compared with the related experimental parameters. The computed FT-IR and FT-Raman frequencies collected from same basis level and compared with experimental data. The important wavenumber assignments were achieved on the PED of individual vibrational mode. Theoretical (TD-DFT) and experimental UV-Vis absorption wavelengths (lambda) were compared with each other. The FMO, NBO, MEP analyses were performed. In addition, molecular dynamic (MD) simulations, molecular docking and selected optoelectronic properties have been studied. (C) 2019 Elsevier B.V. All rights reserved.
Facile intramolecular Diels–Alder reaction of 4-(o-propargyloxy)styrylcoumarins leading to highly fluorescent coumarin-containing polycyclic compounds
作者:Adil I. Khatri、Shriniwas D. Samant
DOI:10.1016/j.tetlet.2014.02.102
日期:2014.4
O-propargylated salicylaldehyde with substituted coumarin-4-acetic acids. The intramolecular Diels–Alder reaction of 4-(o-propargyloxy)styrylcoumarins, without any catalyst gives fused-ring coumarins. The reaction in boiling nitrobenzene leads to aromatization of the initial Diels–Alderadduct and these aromatized products are highly fluorescent.
Synthesis of potentially photoactivatable coumarin derivatives<i>via</i>a 1,3-dipolar cycloaddition
作者:Elodie-Denise Chenot、Juan Carlos Rodríguez-Domínguez、Alain Comel、Gilbert Kirsch、Paul Hannewald
DOI:10.1002/jhet.5570450528
日期:2008.9
(1)-catalyzed 1,3-dipolarcycloaddition reaction was used to prepare a series of mono and disubstituted 1,2,3-triazolyl-coumarins using a 1,3-cycloaddition (“Click Chemistry”). Starting coumarins were synthesized using classical or modified Pechmann's reaction. The propargyl group was introduced as either propargylether or as a propargylamide. Azides were prepared in a three steps procedure. Cycloaddition products
Synthesis, structure and DNA cleavage studies of coumarin analogues of tetrahydroisoquinoline and protoberberine alkaloids
作者:Vithal B. Jadhav、Susanta K. Nayak、T.N. Guru Row、M.V. Kulkarni
DOI:10.1016/j.ejmech.2010.04.041
日期:2010.9
Novel molecular matrices have been derived from coumarin-4-acetic acids and β-phenylethylamines using the Bischler–Napieralski protocol which has led to the synthesis of analogues of tetrahydropapaverine in which the dimethoxybenzene moiety has been replaced by substituted coumarins. One carbon homologation has led to cyclization at the C3 position of coumarin generating the protoberberine skeleton
Synthesis and rat lens aldose reductase inhibitory activity of some benzopyran-2-ones
作者:Abram N. Brubaker、Jack De Ruiter、William L. Whitmer
DOI:10.1021/jm00156a031
日期:1986.6
A number of 4,7-disubstituted benzopyran-2-ones were synthesized and evaluated for crude rat lens aldose reductase inhibitory activity. Substituents on position 4 included CH3, CO2H, CH2CO2H, CH = CHCO2H, and CH2CH2CO2H. The aromatic substituents included OH, OCH3, OCOCH3, CH2CH3, and Cl. Also included in the study were 3-oxo-3H-naphtho[2,1-b]pyran-1-acetic, 2-oxo-2H-naphtho[1,2-b]pyran-4-acetic, and 1-naphthylacetic acids. The benzopyran and naphthopyran derivatives were prepared by the classical von Pechmann reaction. General structure-activity relationships reveal that optimal enzyme inhibitory activity is displayed by those compounds possessing the acetic acid moiety. For example, the most potent derivative, 3-oxo-3H-naphtho[2,1-b]pyran-1-acetic acid with an IC50 of 0.020 microM, is as potent as sorbinil (IC50 = 0.017 microM) in the crude rat lens aldose reductase assay.
Mashelkar, U. S.; Walavalkar, K. V.; Arvindakshan, C. N., Journal of the Indian Chemical Society, 1992, vol. 69, # 7, p. 404 - 405
作者:Mashelkar, U. S.、Walavalkar, K. V.、Arvindakshan, C. N.、Singh, Anil