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A New chromone Derivative from Stellera chamaejasme L

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Chinese Chemical Letters 2002年第8期13卷 738-739页

作者： Bao Min FENG Yue Hu PEI Hui Ming HUA School of Traditional Chinese Medicines Shenyang Pharmaceutical UniversityShenyang 110016

A new chromone derivative, 3-[1- (2, 4, 6-trihydroxyphenyl) 3-di-(4-hydroxyphenyl) 1-propanone-2-yl] 5,7-dihydroxy-8-di(4-hydroxyphenyl)methyl-4H-1-benzopyran-4-one, named as isomohsenone was isolated from the roots of Stellera chamaejasme L. together with known chamaechromone. Its structure was determined by the analysis of MS and NMR data, especially 2D NMR spectra.

关键词： Stellera chamaejasme L. chromone 3-[1- (2, 4, 6-trihydroxyphenyl) 3-di-(4-hydroxy- phenyl)-1-propanone-2-yl] 5, 7-dihydroxy-8-di-(4-hydroxyphenyl) methyl-4H-1- benzopyran-4- one.

FeCl_(3-) and GaCl_(3-) Catalyzed Dehydrative Coupling Reaction of chromone-Derived Morita-Baylis-Hillman Alcohols with Terminal Alkynes

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Chinese Journal of Chemistry 2011年第12期29卷 2732-2738页

作者：武陈曾皓刘哲刘利王东陈拥军 Beijing National Laboratory for Molecular Sciences （BNLMS） CAS Key Laboratory of Moleeular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China Graduate School of Chinese Academy of Sciences Beijing 100049 China

FeCl3- and GaCl3-catalyzed dehydrative coupling reactions of chromone-derived Morita-Baylis-Hillman （MBH） alcohols with terminal alkynes were developed. The reactions provided exclusively a-regioselective and acetyl... 详细信息

关键词： Morita-Baylis-Hillman alcohol chromone FeCl3 GaCl3 terminal alkyne dehydrative coupling

Selective detection of Zn^(2+) and Cd^(2+) ions in water using a host-guest complex between chromone and Q[7]

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Chinese Chemical Letters 2021年第8期32卷 2572-2576页

作者： Zhishu Zeng Yunqian Zhang Xiaodong Zhang Guangyan Luo Jun Xie Zhu Tao Qianjun Zhang Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province Guizhou UniversityGuiyang 550025China

In this paper,the host-guest interaction of cucurbit[7]uril(Q[7]) and chromone(CMO) has been developed as a fluorescent probe for the highly selective detection of Zn2+ and Cd^(2+) in water based on a chelation-enhanced fluorescence(CHEF) *** was a good linear relationship between the fluorescence intensity of the CMO@Q[7] probe and the concentration of Zn^(2+ )or Cd^(2+) in the range of 0-3.0×10^(-5) mol/L and the detection limit for Zn^(2+) and Cd2+ was found to be 2.03×10^(-6) mol/L and 1.89×10^(-6)mol/L,*** X-ray crystal structure indicated that different coordination fashions were triggered by Zn^(2+) and Cd^(2+ )in the CMO@Q[7] complexes,***,both metal ions coordinated with the carbonyl oxygen of CMO,which was encapsulated in the cavity of Q[7],thus leading to the enhancement of recognition fluorescence emission of CMO.

关键词： chromone Cucurbituril Host-guest interaction Selective detection Zn^(2+)and Cd^(2+)

A new cytotoxic 2-(2-phenylethyl)chromone from Chinese eaglewood

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Chinese Chemical Letters 2008年第8期19卷 934-936页

作者： Jun Liu Jiao Wu You Xing Zhao Yuan Yuan Deng Wen Li Mei Hao Fu Dai Institute of Tropical Bioscience and Biotechnology Chinese Academy of Tropical Agricultural Sciences Haikou 571101 China State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of Botany Chinese Academy of Sciences Kunming 650204 China

A new compound 8-chloro-5,6,7-trihydroxy-2-（3-hydroxy-4-methoxyphenethyl）-5,6,7,8-tetralaydro-4H-chromen-4-one （1） was isolated from the Chinese eaglewood [Aquilaria sinensis （Lour.） Gilg]. Its structure was elucidated on the basis of spectral data. Compound I showed cytotoxicity against human gastric cancer cell line （SGC-7901） in vitro by MTT method with the IC50 value of 14.6 μg/mL.

关键词： Chinese eaglewood Aquilaria sinensis chromone Cytotoxicity

A new 2-(2-phenylethyl)chromone from Chinese eaglewood

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A new 2-(2-phenylethyl)chromone from Chinese eaglewood

chromones from an ascomycete,Chaetomium aureus

海南省药学会2009年学术会议

作者： Hao-Fu Dai,Jun Liu,Yan-Bo Zeng,Zhuang Han,Hui Wang,Wen-Li Mei~* 1.Key Laboratory of Tropical Crop Biotechnology,Ministry of Agriculture,Institute of Tropical Bioscience and Biotechnology,Chinese Academy of Tropical Agricultural Sciences,Haikou 571101,China 2.International Joint Laboratory for Research and Development of Tropical Medicinal Plants, Chinese Academy of Tropical Agricultural Sciences,Haikou 571101,China

A new 2-(2-phenylethyl)chromone,5,6,7,8-tetrahydroxy-2-(3-hydroxy- 4-methoxyphenethyl)-5,6,7,8-tetrahydro-4H-chromen-4-one(1) was isolated from the Chinese eaglewood[Aquilaria ainensis(Lour.) Gilg].Its structure was e... 详细信息

关键词： Chinese eaglewood Aquilaria sinensis chromone

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Chinese Chemical Letters 2010年第10期21卷 1203-1205页

作者： Li Mei Li Qiang Zou Guo You Li Scientific Research Center Chengdu Medical College Chengdu 610083 China Chengdu Institute of Biology Chinese Academy of Sciences Chengdu 610041 China

A novel chromone, named chaetoaurin （1）, along with six known chromone derivatives （2-7）, was isolated from the ethyl acetate extract of a solid-state fermented culture of Chaetomium aureus. Their structures were ... 详细信息

关键词： Chaetomium aureus Chaetomiaceae chromone Chaetoaurin

A convenient synthesis of 6-demethoxycapillarisin

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Chinese Chemical Letters 2007年第4期18卷 407-408页

作者： Yuan Feng Tong Shuai Chen Yong Hao Cheng Song Wu Institute of Materia Medica Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100050 China

A convenient and effective method for the synthesis of 6-demethoxycapillarisin was described. The highlight was involved in a simple access to the key intermediate 2-ethylthio-5,7-dimethoxy-4H-chromen-4-one from the i... 详细信息

关键词： Synthesis 6-Demethoxycapillarisin chromone

Diverse Polyphenols from Hypericum faberi

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Natural Products and Bioprospecting 2019年第3期9卷 215-221页

作者： Xin-Wen Zhang Yan-Song Ye Fan Xia Xing-Wei Yang Gang Xu State Key Laboratory of Phytochemistry and Plant Resources in West China Kunming Institute of BotanyChinese Academy of SciencesYunnan Key Laboratory of Natural Medicinal ChemistryKunming 650201People’s Republic of China University of Chinese Academy of Sciences Beijing 100049People’s Republic of China

Six new polyphenols with diferent isoprenylated xanthones,isoprenylated acylphloroglucinols,and chromone architectures,hyperfaberols A-F(1-6),were isolated from the whole plants of Hypericum faberi along with seven other related known *** which hyperfaberols A/B(1/2)and 12-13 were isoprenylated xanthones,hyperfaberols C-E(3-5)and 8-11 were seven isoprenylated acylphloroglucinol derivatives,while 6-7 were two *** structures were elucidated by comprehensive analysis of their spectroscopic data as well as detailed comparison with the literature *** 1 and 11 showed cytotoxities against the human esophageal cancer cell line(ECA-109)and the pancreatic tumor cell line(PANC-1)in vitro,respectively.

关键词： Hypericum faberi Isoprenylated xanthone Isoprenylated acylphloroglucinol chromone Cytotoxicitiy

Aloesin as a medical food ingredient for systemic oxidative stress of diabetes

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World Journal of Diabetes 2015年第9期6卷 1097-1107页

作者： Mesfin Yimam Lidia Brownell Qi Jia Unigen Inc.

Diabetes is a chronic disease that requires a long term management where oxidative stress plays a pivotal role in disease progression and intensifying secondary complications. In spite of all the research on diabetes and recent advances in diabetes treatments, the reality is that there is no cure for diabetes and its devastating complications. While currently available anti-diabetic therapies are effective in reducing blood glucose level, they are not without associated side effects when they are used for a long term applications. As a result, physicians and patients are inclining more towards to a safer therapy with less serious side effects in the form of medicinal foods and botanical alternatives that are suitable for chronic usage. Aloesin, an Aloe chromone, has previously been formulated with an aloe polysaccharide to give a composition called Loesyn, where it showed significant impact in reducing glycosylated hemoglobin, fasting blood glucose, fructosamine and plasma insulin level in humans. Radical scavenging activities of chromones and polysaccharides from Aloe have also been reported. Here we rationalize the relevance of use of Aloesin alone or in a standardized blend with Aloe polysaccharides, as a potential medical food to manage systemic oxidative stress and/or high blood glucose of diabetes.

关键词： Aloesin Aloe polysaccharides Diabetes Oxidative stress Medicinal food Aloe chromone