14415-44-2Relevant articles and documents
Synthesis of 6-(5-sulfanyl-1H-tetrazol-1-yl)-2H-chromen-2-one and 5-methyl-1-(2-oxo-2H-chromen-6-yl)-1H-1,2,3-triazole-4-carboxylic acid
Pokhodylo,Obushak
, p. 1748 - 1749 (2010)
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New copper(I) complex with a coumarin as ligand with antibacterial activity against flavobacterium psychrophilum
Aldabaldetrecu, Maialen,Parra, Mick,Soto, Sarita,Arce, Pablo,Tello, Mario,Guerrero, Juan,Modak, Brenda
, (2020)
A new copper (I) complex, [Cu(NN1)2](ClO4), was synthesized, where NN1 was a imine ligand 6-((quinolin-2-ylmethylene)amino)-2H-chromen-2-one obtained by a derivatization of natural compound coumarin. The structural characterization in solution was done by NMR techniques, UV-Vis and cyclic voltammetry. The potential antibacterial effect of [Cu(NN1)2](ClO4), was assessed for F. psychrophilum isolated 10094. F. psychrophilum is a Gram-negative bacterium which causes diseases such as bacterial cold-water disease and rainbow trout fry syndrome, causing large economic losses in the freshwater salmonid aquaculture industry. This complex show to have antibacterial activity against F. psychrophilum 10094 at non-cytotoxic concentration in cell line derived from trout (F. psychrophilum 10094 IC50 16.0 ± 0.9; RT-GUT IC50 53.0 ± 3.1 μg/mL).
Synthesis, NMR, X-ray and UV/Vis characterization and preliminary luminescence study of some boron β-iminoenolates having 6-aminocoumarin moiety
Dou?ová, Hana,?im?nek, Petr,Almonasy, Numan,R??i?ková, Zdeňka
, p. 60 - 71 (2016)
Five coumarin-based polarized ethylenes (enaminoketones, enaminoester and enaminoamide) were prepared using the condensation of the parent β-dicarbonyl compounds with 6-aminocoumarin. Reaction of the polarized ethylenes with an appropriate source of trivalent boron gave corresponding boron β-iminoenolates having either BF2 or BPh2 fragment. The prepared iminoenolates were characterized by means of multinuclear magnetic resonance in solution, single-crystal X-ray diffraction and UV/Vis spectroscopy. A preliminary luminescence study of the iminoenolates as well as their parent enamines was done. The compounds exhibited fluorescence in a solid state as well as in a frozen 2-methyltetrahydrofuran at 77 K. Exploratory tests showed promising AIE/AIEE properties of the tested compounds. On the other hand, no fluorescence in a solution state (with one exception) was observed.
Intramolecular charge transfer in coumarin based donor-acceptor systems: Formation of a new product through planar intermediate
Phukan, Smritakshi,Saha, Mithu,Pal, Amarta Kumar,Bhasikuttan,Mitra, Sivaprasad
, p. 67 - 79 (2015)
Fluorescence behavior and intramolecular charge transfer (ICT) property of N,N′-dimethylamino substituted anil derivative of coumarinyl amine was studied by steady state and time-resolved fluorescence spectroscopy in combination with density functional theory calculation. Quantitative analysis of the effect of solvent hydrogen bonding on several spectral parameters was done using multiple regression analysis based on Kamlet-Taft model. The present system shows an additional long wavelength fluorescence band almost instantaneously in presence of methanol in sharp contrast to the model unsubstituted analogue. This new fluorescence band is believed to be due to the formation of a new isomer (cis-type) through a planar intermediate. While there is a substantial barrier (~50 kJ mol-1) in the ground state, the isomerization process in the excited state in polar-protic environment proceeds very fast and believed to be catalyzed by hydrogen bond formation at the imine nitrogen atom in combination with stabilization of the resulting species through ICT.
Synthesis and in vitro cytotoxicity of aminocoumarin platinum(II) complexes
Kokotos, George,Theodorou, Vassiliki,Tzougraki, Chryssa,Deforce, Dieter L.D.,Van Den Eeckhout, Elfreide G.
, p. 2165 - 2168 (1997)
A number of cis-dichloro[bis(aminocoumarin)platinum(II) complexes have been synthesized and evaluated for their in vitro cytotoxicity against Caco-2T cells. The complex with 7-amino-4-trifluoromethylcoumarin as ligand has been found to be the most active (IC50 10 μ/ml) in this study.
Design, synthesis, and antifungal evaluation of novel coumarin-pyrrole hybrids
Zhang, Shuguang,Tan, Xin,Liang, Chaogen,Zhang, Weihua
, p. 450 - 458 (2020/11/30)
A series of coumarin derivatives bearing a pyrrole scaffold were designed, prepared, and assessed for their in vitro antifungal activities against six phytopathogenic fungi. The antifungal activity screening results suggest that some synthesized hybrids exhibited potential fungicidal activities against the tested fungi. In particular, compounds 6j, 6k, 6o, 6p, and 6r displayed significant antifungal effects against Rhizoctorzia solani, and possessed EC50 values of 3.94, 7.75, 6.38, 6.25, and 7.67 μg/ mL, respectively. The above activities are more potent than the commercialized fungicide Boscalid (11.52 μg/mL) and Osthole (9.79 μg/mL). These results provide a significant reference for further rational design of coumarin-based fungicides.
Synthesis and biological evaluation of coumarin-linked 4-anilinomethyl-1,2,3-triazoles as potent inhibitors of carbonic anhydrases ix and xiii involved in tumorigenesis
Thacker, Pavitra S.,Tiwari, Prerna L.,Angeli, Andrea,Srikanth, Danaboina,Swain, Baijayantimala,Arifuddin, Mohammed,Supuran, Claudiu T.
, (2021/04/22)
A series of coumarin-linked 4-anilinomethyl-1,2,3-triazoles (6a–t) was synthesized via a molecular hybridization approach, through carbon C-6 of the coumarin moiety. The synthesized compounds were evaluated for their inhibition of carbonic anhydrase (CA)