Antioxidant activity of 3-substituted-4-hydoxycoumarin derivatives

doi:10.24214/jcbps.a.7.3.58699

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2020

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“…Following method B, condensation of 0.31 g (1.5 mmol) of 4 with phenylhydrazine in ethanol gave 0.42 g (94%) of 7f as yellow crystals, mp 224–225 °C (lit. , 223–224, 236 °C). 1 H NMR (400 MHz, DMSO- d 6 ) δ 15.67 (s, 1H, OH), 9.13 (s, 1H, NNHPh), 7.99 (ddd, 7.8, 1.7, 0.6 Hz, 1H, H5), 7.67 (ddd, 8.2, 7.3, 1.7 Hz, 1H, H7), 7.33 (m, 4H, H6,8, m -Ph), 6.95 (m, 3H, o , p -Ph), 2.74 (s, 3H, CH 3 ).…”

Section: Methodsmentioning

confidence: 99%

Synthesis and Evaluation of 4-Hydroxycoumarin Imines as Inhibitors of Class II Myosins

et al. 2020

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B. C.C. and R.K.B. conducted the motility assays and analyzed the data. D.H. and T.G. did the muscle experiments and analyzed the data. A.I. performed the solubility and stability measurements, recorded all UV/visible spectra in methanol, and determined the λ max and ε values. ASSOCIATED CONTENT Supporting InformationThe Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/acs.jmedchem.0c01062. UV-visible spectra for hydrolysis of 7i in 99:1 (v/v) PBS/methanol; PDB files for the homology models of bovine cardiac and rabbit skeletal myosins (used for Table 2 and Figure 7) (PDF) SMILES strings for all of the new compounds tested (CSV)

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Section: Methodsmentioning

confidence: 99%