Academic literature on the topic '3-methoxyflavone'

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Journal articles on the topic "3-methoxyflavone"

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Budzianowski, Jaromir, and Eckhard Wollenweber. "Rare Flavones from the Glandular Leaf Exudate of the Oxlip, Primula Elatior L." Natural Product Communications 2, no. 3 (2007): 1934578X0700200. http://dx.doi.org/10.1177/1934578x0700200308.

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5,6,2′,3′,6′-Pentamethoxyflavone (1), together with 3′,5′-dihydroxy-4′-methoxyflavone (2), 2′-methoxyflavone, 3′-methoxyflavone, 3′,4′-dimethoxyflavone, 2′,5′-methoxyflavone, 3′-hydroxy-4′,5′-dimethoxyflavone, 3′,4′,5′-trimethoxyflavone, and 3′-hydroxy-4′,5′-methylenedioxyflavone were found in the leaf exudate of the oxlip, Primula elatior (Primulaceae). The structures of flavones 1 and 2 were substantiated by 2D NMR spectroscopy.
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Legoale, Percival B., Mahlori J. Mashimbye, and Teunis van Ree. "Antiinflammatory and Antioxidant Flavonoids from Helichrysum Kraussii and H. odoratissimum Flowers." Natural Product Communications 8, no. 10 (2013): 1934578X1300801. http://dx.doi.org/10.1177/1934578x1300801015.

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Organic extracts of the flowers of Helichrysum kraussii and H. odoratissimum contain several bioactive flavonoids, characterized by 1H NMR, 13C NMR and mass spectrometry. Four flavonoids, 5,6-dihydroxy-3,7,8-trimethoxyflavone, 5,7-dihydroxy-3-methoxyflavone, 3′,4′,5,7-tetrahydroxy-3-methoxyflavone and 3′,4′,3,5-tetrahydroxy-7-methoxyflavone, have antioxidant activity by the DPPH free radical assay, while 5,6-dihydroxy-3,7,8-trimethoxyflavone and 3′,4′,3,5-tetrahydroxy-7-methoxyflavone have promising anti-inflammatory activity.
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Ren, S. C., Q. Q. Qiao, and X. L. Ding. "Antioxidative activity of five flavones glycosides from corn silk (Stigma maydis)." Czech Journal of Food Sciences 31, No. 2 (2013): 148–55. http://dx.doi.org/10.17221/194/2012-cjfs.

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Five flavones glycosides (i.e., 2''-O-α-l-rhamnosyl-6-C-3''deoxyglucosyl-3'-methoxyluteolin, ax-5'-methane-3'-methoxymaysin, ax-4''-OH-3'-methoxymaysin, 6,4'-dihydroxy-3'-methoxyflavone-7-O-glucoside, and 7,4'-dihydroxy-3’-methoxyflavone-2''-O-α-l-rhamnosyl-6-C-fucoside) were successfully isolated from corn silk and identified. We evaluated their antioxidant activity among in vitro assay systems. Most of the flavones glycosides showed a high antioxidant activity in a lecithin liposome system, as well as a strong scavenging activity against radicals such as 1,1-dip
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Parvez, M., and O. N. Ogbeide. "3-Hydroxy-4′-methoxyflavone from Millettia zechiana." Phytochemistry 29, no. 6 (1990): 2043–44. http://dx.doi.org/10.1016/0031-9422(90)85069-r.

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Huo, Chen, Sullim Lee, Min Jeong Yoo, et al. "Methoxyflavones from Black Ginger (Kaempferia parviflora Wall. ex Baker) and their Inhibitory Effect on Melanogenesis in B16F10 Mouse Melanoma Cells." Plants 12, no. 5 (2023): 1183. http://dx.doi.org/10.3390/plants12051183.

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Kaempferia parviflora Wall. ex Baker (Zingiberaceae), commonly known as Thai ginseng or black ginger, is a tropical medicinal plant in many regions. It has been traditionally used to treat various ailments, including ulcers, dysentery, gout, allergies, abscesses, and osteoarthritis. As part of our ongoing phytochemical study aimed at discovering bioactive natural products, we investigated potential bioactive methoxyflavones from K. parviflora rhizomes. Phytochemical analysis aided by liquid chromatography–mass spectrometry (LC-MS) led to the isolation of six methoxyflavones (1–6) from the n-he
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Cornard, J. P., L. Vrielynck, J. C. Merlin, and J. C. Wallet. "Structural and vibrational study of 3-hydroxyflavone and 3-methoxyflavone." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 51, no. 5 (1995): 913–23. http://dx.doi.org/10.1016/0584-8539(94)01425-g.

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Shoja, M., and P. Sullivan. "Crystal structure of 3-hydroxy-2'-methoxyflavone, C16H12O4." Zeitschrift für Kristallographie - New Crystal Structures 214, no. 2 (1999): 237–38. http://dx.doi.org/10.1515/ncrs-1999-0244.

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Mahboobi, Siavosh, and Herwig Pongratz. "Synthesis Of 2'-Amino-3'-Methoxyflavone (Pd 98059)." Synthetic Communications 29, no. 10 (1999): 1645–52. http://dx.doi.org/10.1080/00397919908086149.

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Shoja, M., P. Sullivan, D. Athanasopoulos, and R. Kabbani. "Crystal structure of 3-hydroxy-7-methoxyflavone, C16H12O4." Zeitschrift für Kristallographie - New Crystal Structures 213, no. 1-4 (1998): 607–8. http://dx.doi.org/10.1524/ncrs.1998.213.14.607.

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Shoja, M. "Crystal structure of 3-hydroxy-6-methoxyflavone, C16H12O4." Zeitschrift für Kristallographie - New Crystal Structures 213, no. 1-4 (1998): 771–72. http://dx.doi.org/10.1524/ncrs.1998.213.14.771.

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Dissertations / Theses on the topic "3-methoxyflavone"

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Dodd, Stanley Anthony. "The effect of selected methoxy flavonoids on the in vitro efflux transport of rhodamine 123 using rat jejunum / Stanley Anthony Dodd." Thesis, North-West University, 2005. http://hdl.handle.net/10394/784.

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Many orally administered drugs must overcome several barriers before reaching their target site. The first major obstacle to cross is the intestinal epithelium. Although lipophilic compounds may readily diffuse across the apical plasma membrane, their subsequent passage across the basolateral membrane and into blood is by no means guaranteed. Efflux proteins located at the apical membrane, which include P-glycoprotein (P-gp, MDR1) and Multidrug Resistance-associated Protein (MRP2), may drive compounds from inside the cell back into the intestinal lumen, preventing their absorption into the blo
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Book chapters on the topic "3-methoxyflavone"

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Cornard, J. P., L. Vrielynck, and J. C. Merlin. "Conformational Analysis of 3-Methoxyflavone: Semiempirical Calculations and Vibrational Study." In Spectroscopy of Biological Molecules. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0371-8_124.

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"Hrisoeriol (5,7,4′-Trihydroxy-3′-methoxyflavone)." In Natural Compounds. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-0535-1_295.

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Conference papers on the topic "3-methoxyflavone"

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Wongcharu, Aoraya, Chanikan Sonklin, Cherdchai Laongtiparos, Siriporn Pranee, Samitthichai Seeyangnok, and Nisalak Trongsiriwat. "Chemical Constituents of Black Galingale Rhizome from Hexane Crude Extract and its Nanoemulsion Preparation." In 2024 8th International Conference on Materials Engineering and Nano Sciences & 2024 8th International Conference on Material Engineering and Manufacturing. Trans Tech Publications Ltd, 2024. http://dx.doi.org/10.4028/p-p1fkxg.

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Kaempferia parviflora (Black Galingale) is a medicinal plant in the family Zingiberaceae. It has biological activities, but the bioactive compounds are easily decomposed and poorly soluble. This research has focused on the chemical constituents and bioactivities of the hexane crude extract from K. parviflora rhizomes for nanotechnology. The K. parviflora rhizomes were extracted with hexane by the maceration. The crude extract 39.99 g was obtained and purified using column chromatography to give four pure compounds, namely (1) 5-hydroxy-3,7-dimethoxyflavone, (2) 5-hydroxy-7-methoxyflavone, (3)
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Reports on the topic "3-methoxyflavone"

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ทิพยางค์, สันติ, วรินทร ชวศิริ, ปรีชา ภูวไพรศิริศาล, พัฒทรา สวัสดี та ไพฑูรย์ รัชตะสาคร. สารสำคัญและการประกันคุณภาพอาหารเสริมจากกระชายดำ : รายงานการวิจัย. จุฬาลงกรณ์มหาวิทยาลัย, 2008. https://doi.org/10.58837/chula.res.2008.51.

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สารฟลาโวนอยด์ 10 ชนิดที่แยกได้จากเหง้ากระชายดำ (KD) เมื่อทดสอบฤทธิ์ยับยั้ง เอนไซม์อะเซทิลโคลีนเอสเตอเรส ด้วยวิธี microplate assay พบว่า สาร 6 (5,7,4’-trimethoxy-flavone) และ 7 (5,7-dimethoxyflavone) มีฤทธิ์ยับยั้งเท่ากับ 56.20 และ 44.20% ตามลำดับ ที่ระดับความเข้มข้น 1 มก. ต่อ มล. นอกจากนี้ยังได้สังเคราะห์สารฟลาโวน (11), 2’3’4’-trimethoxyflavone (12), 3,3’-dimethoxyflavone (13) และ 3-benzyloxy-3’methoxyflavone (14) พบว่าสาร 11, 13 และ 14 มีฤทธิ์ยับยั้งเอนไซม์อะเซทิลโคลีนเอสเตอเรสน้อยกว่าสาร 6 และ 7 ในการวิเคราะห์หาปริมาณสารฟลาโวนอยด์ (6 และ 7) ในสิ่งสกัดและผลิตภัณฑ์กระชายดำ ได้นำวิธีทาง HPLC แล
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