The solvent was evaporated under reduced pressure and the residue was treated with distilled water (10 mL) and extracted with ethyl acetate (3 x 10 mL). (2014) tested compounds with a methoxyl substituent at the para position and a fluoride at the meta-position presenting antifungal activity against of strains of C. albicans [31]. . The high resolution mass spectrometry was performed for the original compounds, using a TOF/TOF Ultraflex II mass spectrometer equipped with a high performance solid state laser (λ = 355 nm) and a reflector. It is a conjugate acid of a vanillate. Dark yellow oil, 86.44 % yield; IR ʋmax (KBr, cm−1): 3184, 2970, 2877, 1662, 1585, 1570 and 1517; 1H NMR (500 MHz, CDCl3): 7.11 (d, J = 1.8 Hz, 1H, H-2), 7.02 (dd, J = 8.1, 1.9 Hz, 1H, H-6), 6.87 (d, J = 8.2 Hz, 1H, H-5), 3.86 (s, 3H, OCH3), 3.61 (t, J = 5.9 Hz, 2H, H-1′), 3.48 (t, J = 5.4 Hz, 2H, H-2′), 1.96 – 1.80 (m, 4H, H-3′, H-4′); 13C NMR (125 MHz, CDCl3): 169.39 (C=O), 147.43 (C-4), 146.36 (C-3), 128.60 (C-1), 120.72 (C-6), 113.73 (C-5), 110.67 (C-2), 55.85 (OCH3), 49.89 (C-1′), 46.30 (C-2′), 26.32 (C-3′), 24.26 (C-4′) [13].
3: C, 67.59; H, 5.67; N, 9.85%.Found:C, 67.46; H, 5.66; N, 9.97%. John W. Blunt, Brent R. Copp, Wan-Ping Hu, Murray H. G. Munro, Peter T. Northcote, Michèle R. Prinsep. Compound 2 presented signals of methylene carbons (5 member ring) at 49.89 (C-1′), 46.30 (C-2′), 26.32 (C-3′), and 24.26 (C-4′). [all data], Tanaka, Hine, et al., 1980 The solution was stirred for 24 to 48 hours at room temperature.
Compound 7 presented a CH3 carbon signal at 21.17. In accordance with the MFC/MIC relation [30] and as contained in Table 1, all of the tested compounds presented fungicidal activity against the tested strains. Tohoku J. Exp. uses its best efforts to deliver a high quality copy of the Compounds 1 and 2 had IC50 values of 3.7 and 1.7 uM, respectively. C @ 10. min, N2, 60. Molecular Engineering of Tetracyclic 2,3-Dihydro-1 [6], Vanillic acid is one of the main catechins metabolites found in humans after consumption of green tea infusions. Compound 9 presented two OCH3 carbon signals at the meta and para positions of the aromatic ring at 56.08 and 55.08. Effect of hydrogen bonding on the nonradiative properties of dibenzofuran. [all data], Mattsson and Petersson, 1977 Three (3) 30 μL aliquots of supernatant were removed from the wells (where complete fungal growth inhibition was analyzed) and allocated to Petri dishes containing 15 mL of Sabouraud Dextrose. Weijun Yang, Jun Zhou, Binjie Wang, Hongjun Ren. Review articles are excluded from this waiver policy. Experimental result shows that novel vanillic acid acylhydrazone analog derivative of the present invention has obvious restraining effect to bacterium.Therefore vanillic acid acylhydrazone analog derivative of the present invention can be applied to prepare antibacterials. Sci., 1989, 27, 1, 23-29, https://doi.org/10.1093/chromsci/27.1.23

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