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Synthesis and Cytotoxicities of Royleanone Derivatives
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作者 Cheng-Ji Li Fan Xia +4 位作者 Rong Wu hong-sheng tan Hong-Xi Xu Gang Xu Hong-Bo Qin 《Natural Products and Bioprospecting》 CAS 2018年第6期453-456,共4页
Carnosic acid was used as starting material to synthesize royleanone derivatives featured C11–C14 para quinone.The importance of C-20 group of royleanone derivatives was verified by the cytotoxicity assay of royleano... Carnosic acid was used as starting material to synthesize royleanone derivatives featured C11–C14 para quinone.The importance of C-20 group of royleanone derivatives was verified by the cytotoxicity assay of royleanonic acid,miltionone I and deoxyneocrptotanshinone.Following our synthetic route,15 amide derivatives were synthesized and 8 compounds exhibited moderate cytotoxic activities against three human cancer lines in vitro. 展开更多
关键词 Royleanones CYTOTOXICITY para benzoquinone
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Simultaneous Determination of Seven Components in Gamboge and Its Processed Products Using a Single Reference Standard 被引量:1
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作者 Min Xu hong-sheng tan +4 位作者 Wen-wei Fu Ling-yun Pan Yue-xun tang Shen-da Huang Yan-feng Xiu 《Chinese Herbal Medicines》 CAS 2017年第1期42-49,共8页
Objective To establish a quality control method for simultaneous determination of multiple components in gamboge. Methods A single reference standard for the determination of multiple components (SSDMC) with HPLC wa... Objective To establish a quality control method for simultaneous determination of multiple components in gamboge. Methods A single reference standard for the determination of multiple components (SSDMC) with HPLC was proposed. Seven major components of gamboge including gambogenic acid (S), β-morellic acid (C1), 2R-30-hydroxygambogic acid (C2), isogambogenic acid (C3), gambogellic acid (C4), 2R-gambogic acid (C5), and 2S-gambogic acid (C6) were simultaneously analyzed using gambogenic acid as reference standard. The credibility and feasibility of SSDMC method were validated with respect to linearity, limits of detection and quantification, precision, stability, repeatability, accuracy, ruggedness, and robustness. The relative conversion factors (RCFs) of S and C1-6 were calculated. Twelve batches of gamboge including crude and processed products were successfully analyzed by applying the SSDMC and traditional external standard (ES) methods. Results The SSDMC method was credible and feasible. The RCFs of S and C1-6 were 1.000, 0.913, 0.864, 1.064, 0.777, 0.921, and 0.919, respectively. No significant difference was observed in the contents of the seven components between SSDMC and ES methods. The heat-processing technique caused a reduction in the seven components. Conclusion SSDMC is a simple, reliable, and effective method for the analysis of the complex multiple components in gamboge, and it is also a practical and economical approach. 展开更多
关键词 gamboge HPLC quality control relative conversion factor single standard for determination of multiple components
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