2022
DOI: 10.1002/cbdv.202100939
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Antiviral Activities of Novel Myricetin Derivatives Containing 1,3,4‐Oxadiazole Bisthioether

Abstract: A class of novel myricetin derivatives containing 1,3,4-oxadiazole bisthioether were synthesized. The results of antiviral biological activity demonstrated that the partially compounds exhibited good antiviral effects against tobacco mosaic virus. The in vivo curative and protective activities of compound E12 against TMV was quite significant. The EC 50 value of the curative activity of E12 was 128.8 μg/mL, while the value of ningnanmycin was 296.4 μg/mL. Similarly, the EC 50 value of the protective activity o… Show more

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Cited by 13 publications
(6 citation statements)
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References 47 publications
(43 reference statements)
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“…The synthetic route of title compounds D1 – D19 is illustrated in Scheme 1 , based on the synthesis method outlined in reference [ 41 , 42 , 43 , 44 , 45 , 46 ]. The intermediate a was synthesized using substituted phenylhydrazine, ethyl acetoacetate or ethyl benzoylacetate, DMF ( N , N -Dimethylformamide) and POCl 3 (phosphorus oxychloride).…”
Section: Resultsmentioning
confidence: 99%
“…The synthetic route of title compounds D1 – D19 is illustrated in Scheme 1 , based on the synthesis method outlined in reference [ 41 , 42 , 43 , 44 , 45 , 46 ]. The intermediate a was synthesized using substituted phenylhydrazine, ethyl acetoacetate or ethyl benzoylacetate, DMF ( N , N -Dimethylformamide) and POCl 3 (phosphorus oxychloride).…”
Section: Resultsmentioning
confidence: 99%
“…For example, compounds 1 ( K d = 0.003 μM) and 2 ( K d = 0.256 μM) (myricetin derivative containing oxadiazole linked with flexible bridges) exhibited significantly improved curative and protective activities against TMV compared to ningnanmycin ( K d = 2.726 μM) . However, compared to compound 1 , compound 3 ( K d = 0.029 μM), exhibited reduced activity against TMV despite containing the same scaffold . This observation suggests that the length of the flexible bridge is a critical parameter governing the antiviral activity of these compounds.…”
Section: Benzopyran Active Compounds For Agricultural Applicationmentioning
confidence: 99%
“…49 However, compared to compound 1, compound 3 (K d = 0.029 μM), exhibited reduced activity against TMV despite containing the same scaffold. 50 This observation suggests that the length of the flexible bridge is a critical parameter governing the antiviral activity of these compounds. In addition, the introduction of electron-donating groups on the benzene ring connected with oxadiazole also improves the antiviral activity of the scaffold compound; therefore, oxadiazole was replaced with thiadiazole or its mode of linking with the pyranoid ring was altered to obtain compounds 4 and 5, respectively.…”
Section: ■ Introductionmentioning
confidence: 99%
“…Myricetin is a class of natural flavonoids. Pharmacological research shows that myricetin possesses antiviral, 13,14 antibacterial, [15][16][17] anticancer, [18][19][20][21] antioxidant 22 and other biological activities. Because of the advantages of various plant sources and biological activity, the myricetin flavonoids have attracted widespread attention and research.…”
Section: Introductionmentioning
confidence: 99%