70460-18-3Relevant articles and documents
Divergent synthesis of flavones and flavanones from 2′-hydroxydihydrochalconesviapalladium(ii)-catalyzed oxidative cyclization
Son, Seung Hwan,Cho, Yang Yil,Yoo, Hyung-Seok,Lee, Soo Jin,Kim, Young Min,Jang, Hyu Jeong,Kim, Dong Hwan,Shin, Jeong-Won,Kim, Nam-Jung
, p. 14000 - 14006 (2021/04/22)
Divergent and versatile synthetic routes to flavones and flavanonesviaefficient Pd(ii) catalysis are disclosed. These Pd(ii) catalyses expediently provide a variety of flavones and flavanones from 2′-hydroxydihydrochalcones as common intermediates, depending on oxidants and additives,viadiscriminate oxidative cyclization sequences involving dehydrogenation, respectively, in a highly atom-economic manner.
Preference for O-demethylation reactions in the oxidation of 2′-, 3′-, and 4′-methoxyflavones by human cytochrome P450 enzymes
Nagayoshi, Haruna,Murayama, Norie,Tsujino, Masaki,Takenaka, Shigeo,Katahira, Jun,Kim, Vitchan,Kim, Donghak,Komori, Masayuki,Yamazaki, Hiroshi,Guengerich, F. Peter,Shimada, Tsutomu
, p. 1158 - 1169 (2020/05/11)
2′-, 3′-, and 4′-Methoxyflavones (MeFs) were incubated with nine forms of recombinant human cytochrome P450 (P450 or CYP) enzymes in the presence of an NADPH-generating system and the products formed were analyzed with LC-MS/MS methods. CYP1B1.1 and 1B1.3
Microwave-assisted synthesis of novel bis-flavone dimers as new anticancer agents
McGown, Andrew,Ragazzon-Smith, Abby,Hadfield, John A.,Potgetier, Herman,Ragazzon, Patricia A.
supporting information, p. 66 - 75 (2019/05/04)
In this study, we describe a microwave-based click chemistry method used to prepare a family of novel bis-flavone dimers. The substituted 7-hydroxy and 4’-hydroxy flavonoids were linked through a triazole ring. The compounds were easily synthesized and purified in high yields. The bis-flavonoids were tested on different cell lines including HCT116, HepG2, MCF7 and MOLT-4. Several analogues showed to have anticancer activity with IC50 values in the range of 20-60 μM. Flavonoids are known for their anticancer properties and this method provides the basis for new medicinal structures.
Identification and structure activity relationship of novel flavone derivatives that inhibit the production of nitric oxide and PGE2 in LPS-induced RAW 264.7 cells
An, Ji-Young,Lee, Hwi-Ho,Shin, Ji-Sun,Yoo, Hyung-Seok,Park, Jong Seon,Son, Seung Hwan,Kim, Sang Won,Yu, Jihyun,Lee, Jun,Lee, Kyung-Tae,Kim, Nam-Jung
, p. 2613 - 2616 (2017/05/10)
In an effort to identify novel anti-inflammatory compounds, a series of flavone derivatives were synthesized and biologically evaluated for their inhibitory effects on the production of nitric oxide (NO) and prostaglandin E2 (PGE2), representative pro-inflammatory mediators, in LPS-induced RAW 264.7 cells. Their structure-activity relationship was also investigated. In particular, we found that compound 3g displayed more potent inhibitory activities on PGE2 production, similar inhibitory activities on NO production and less weak cytotoxicity than luteolin, a natural flavone known as a potent anti-inflammatory agent.
Synthesis, in vitro and Docking Studies of New Flavone Ethers as α-Glucosidase Inhibitors
Imran, Syahrul,Taha, Muhammad,Ismail, Nor Hadiani,Kashif, Syed Muhammad,Rahim, Fazal,Jamil, Waqas,Wahab, Habibah,Khan, Khalid Mohammed
, p. 361 - 373 (2016/03/12)
We report herein the synthesis, α-glucosidase inhibition and docking studies for a series of 3-15 new flavones. A simple nucleophilic substitution reaction takes place between 3′hydroxyflavone (2) with halides to afford the new flavones. Chalcone (1), 3′h
Synthesis and antiviral activity of 2-aryl-4H-chromen-4-one derivatives against Chikungunya virus
Badavath, Vishnu N.,Jadav, Surender S.,Pastorino, Boris,De Lamballerie, Xavier,Sinha, Barij N.,Jayaprakash, Venkatesan
, p. 1019 - 1024 (2016/11/25)
A series of nineteen 2-aryl-4H-chromen-4-one derivatives 2a-2s were synthesized and evaluated for their antiviral activity against Chikungunya virus (LR2006-OPY1) in Vero cell culture by CPE reduction assay. Three compounds 2a, 2b and 2g, were found to be active at concentration of (IC50) 0.44 μM, 0.45 μM and 2.02 μM, respectively. Compounds having heterocyclic ring 2a and 2b at the 2nd position of the chromenone were found to be potent inhibitor of ChikV. Cytotoxicity studies were performed using Vero cell culture, compounds 2a and 2b exhibited SI of ≥100. Molecular docking simulation has been carried out to understand the possible mechanism of action.
A versatile approach to flavones via a one-pot Pd(II)-catalyzed dehydrogenation/oxidative boron-Heck coupling sequence of chromanones
Lee, Jun,Yu, Jihyun,Son, Seung Hwan,Heo, Jinyuk,Kim, Taelim,An, Ji-Young,Inn, Kyung-Soo,Kim, Nam-Jung
, p. 777 - 784 (2016/01/12)
A variety of flavones were expediently synthesized from readily accessible chromanones via a one-pot sequence involving Pd(ii)-catalyzed dehydrogenation and oxidative boron-Heck coupling with arylboronic acid pinacol esters. In particular, the use of arylboronic acid pinacol esters was found to significantly improve the yield of the reaction.
PPh3·HBr-DMSO: A Reagent System for Diverse Chemoselective Transformations
Mal, Kanchan,Kaur, Amanpreet,Haque, Fazle,Das, Indrajit
, p. 6400 - 6410 (2015/06/30)
The broad applicability of the hitherto unexplored reagent combination PPh3·HBr-DMSO is exemplified with multiple highly diverse one-step transformations to synthetically useful building blocks, such as flavones, 4H-thiochromen-4-ones, α-hydroxy ketones, 1,4-naphthoquinones (including vitamin K3), 2-bromo-3-substituted-1H-1-indenones, 2-methylthio-1H-1-indenones, 3-butyne-1,2-dione, and 4-pentene-2,3-diones. The simple and mild reaction conditions make the reagent superior in terms of yield and substrate scope in comparison with the existing alternatives.
Monoamine oxidase inhibitory activity of 2-aryl-4H-chromen-4-ones
Nayak, Badavath Vishnu,Ciftci-Yabanoglu,Bhakat, Soumendranath,Timiri, Ajay Kumar,Sinha, Barij N.,Ucar,Soliman, Mahmoud E. S.,Jayaprakash, Venkatesan
, p. 72 - 80 (2015/02/19)
A series of twenty 2-aryl-4H-chromen-4-one (flavones) derivatives (3a-3s) were synthesized and tested for hMAO inhibitory activity. Fifteen compounds (3a, 3c, 3e-3h, 3j-3p, 3r, 3s) were found to be selective towards MAO-B, while 3d was selective towards MAO-A, and 3b, 3i and 3q were non-selective. Experimental Selectivity Index for MAO-B ranges from 2.0 (3g, 3p) to 30.0 (3j). Compound 3j, which is carrying 3,4-di-OMeC6H3 groups at R position on the molecule, was found to be potent MAO-B inhibitor amongst the fifteen with Ki value for MAO-B of 0.16 ± 0.01 lM comparable to that of standard drug, Selegiline (Ki for MAO-B is 0.16 ± 0.01 μM). Compound 3j also appeared as the most selective MAO-B inhibitor according to its best selectivity index (30.0), which is comparable to that of Selegiline (SIMAO-B = 35.0). Molecular docking and molecular dynamics simulation studies were carried out using Autodock-4.0 and Amber12 to understand the molecular level interaction and energy relation of MAO isoforms with selective inhibitors (3d and 3j). Simulation results are in good agreement with the experimental results. Leads identified may further be explored to develop potent isoform specific inhibitors of MAO.
Monoamine oxidase inhibitory activity of 2-aryl-4H-chromen-4-ones
Badavath, Vishnu Nayak,Ciftci-Yabanoglu,Bhakat, Soumendranath,Timiri, Ajay Kumar,Sinha, Barij N.,Ucar,Soliman, Mahmoud E.S.,Jayaprakash, Venkatesan
, p. 72 - 80 (2015/02/19)
A series of twenty 2-aryl-4H-chromen-4-one (flavones) derivatives (3a-3s) were synthesized and tested for hMAO inhibitory activity. Fifteen compounds (3a, 3c, 3e-3h, 3j-3p, 3r, 3s) were found to be selective towards MAO-B, while 3d was selective towards MAO-A, and 3b, 3i and 3q were non-selective. Experimental Selectivity Index for MAO-B ranges from 2.0 (3g, 3p) to 30.0 (3j). Compound 3j, which is carrying 3,4-di-OMeC6H3 groups at R position on the molecule, was found to be potent MAO-B inhibitor amongst the fifteen with Ki value for MAO-B of 0.16 ± 0.01 μM comparable to that of standard drug, Selegiline (Ki for MAO-B is 0.16 ± 0.01 μM). Compound 3j also appeared as the most selective MAO-B inhibitor according to its best selectivity index (30.0), which is comparable to that of Selegiline (SIMAO-B = 35.0). Molecular docking and molecular dynamics simulation studies were carried out using Autodock-4.0 and Amber12 to understand the molecular level interaction and energy relation of MAO isoforms with selective inhibitors (3d and 3j). Simulation results are in good agreement with the experimental results. Leads identified may further be explored to develop potent isoform specific inhibitors of MAO.