Records of Natural Products

Records of Natural Products

Chemical Constituents and their DPPH Radical Scavenging Activity of Nepalese Crude Drug Begonia picta

Yazarlar: Khem Raj Joshi, Hari Prasad Devkota, Takanori Nakamura, Takashi Watanabe Shoji Yahara

Cilt 9 , Sayı 3 , 2015 , Sayfalar 446 - 450

Konular:-

Anahtar Kelimeler:Begoina picta,Vitexin,Orientin,Flavonoid,Xanthone

Özet: Vitexin (1), isovitexin (2), orientin (3), isoorientin (4) and 1, 3 - dih y d roxy - 6, 7 - dimethoxyxanthone (5) were isolated from the whole plant of Begonia picta , a Nepalese crude drug commonly known as “ Magarkaanche ”. Structures were elucidated on the basis of chemical and spectroscopic methods. All of these compounds were isolated for the first time from B. picta and their in vitro antioxidant activity was evaluated by diphenyl-2-picrylhydrazyl ( DPPH ) free radical scavenging assay. Compounds 3 and 4 showed significant free radical scavenging activity.

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@article{2015, title={Chemical Constituents and their DPPH Radical Scavenging Activity of Nepalese Crude Drug Begonia picta}, volume={9}, number={446–450}, publisher={Records of Natural Products}, author={Khem Raj Joshi, Hari Prasad Devkota, Takanori Nakamura, Takashi Watanabe  Shoji Yahara}, year={2015} }
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Khem Raj Joshi, Hari Prasad Devkota, Takanori Nakamura, Takashi Watanabe  Shoji Yahara. (2015). Chemical Constituents and their DPPH Radical Scavenging Activity of Nepalese Crude Drug Begonia picta (Vol. 9). Vol. 9. Records of Natural Products.
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Khem Raj Joshi, Hari Prasad Devkota, Takanori Nakamura, Takashi Watanabe  Shoji Yahara. Chemical Constituents and Their DPPH Radical Scavenging Activity of Nepalese Crude Drug Begonia Picta. no. 446–450, Records of Natural Products, 2015.
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