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Two New <i>C</i>‐<i>seco</i> Limonoids from the Fruit of <i>Melia azedarach</i>
Jin, Qinghao,Lee, Chul,Woox2005,Lee, Jin,Yeon ,Choi, Jeong,Taex2005,Hong, Jin,Kim, Youngsoo,Kyeongx2005,Lee, Mi,Yeon ,Hwang, Bang WILEY‐VCH Verlag 2014 Helvetica chimica acta Vol.97 No.8
<P><B>Abstract</B></P><P>A phytochemical investigation of the fruits of <I>Melia azedarach</I> led to the isolation of two new C‐<I>seco</I>‐nimbolinin‐type limonoids, 3<I>α</I>‐acetoxy‐1<I>α</I>,7<I>α</I>‐dihydroxy‐12<I>α</I>‐methoxynimbolinin (<B>1</B>) and 3<I>α</I>‐acetoxy‐1<I>α</I>,12<I>α</I>‐dihydroxy‐7<I>α</I>‐(2‐methylprop‐2‐enoyl)nimbolinin (<B>2</B>), together with eleven known compounds, <B>3</B>–<B>13</B>. Their structures were elucidated on the basis of extensive spectroscopic analysis, including <SUP>1</SUP>H‐ and <SUP>13</SUP>C‐NMR, HMQC, HMBC, NOESY, and HR‐FAB‐MS.</P>
Jeong, Yeon ,Hee,Chung, Soox2005,Yeon,Han, Ah-Reum,Sung, Minx2005,Kyung,Jang, Daex2005,Sik,Lee, Jun,Kwon, Youngjoo,Lee, Hwax2005,Jeong,Seo, Eun-Kyoung VERLAG HELVETICA CHIMICA ACTA AG 2007 Chemistry & Biodiversity Vol. No.
<P>(−)-Syringaresinol and tricin, isolated from the AcOEt-soluble extract of the whole plants of Sasa borealis (Gramineae), showed inhibitory effects on the P-glycoprotein in adriamycin-resistant human breast cancer cells, MCF-7/ADR.</P>
Park, Jongmin,Lee, Hyangx2005,Yeon,Cho, Myung-Haing,Park, Seungx2005,Bum WILEY-VCH Verlag 2007 Angewandte Chemie. international edition Vol.46 No.12
<B>Graphic Abstract</B> <P>Tracing glucose uptake: Fluorescent glucose analogues were synthesized, and the importance of stereochemistry for cellular uptake efficiency was demonstrated. The chiral bioprobe 1 showed superior properties as a glucose-uptake tracer. The cellular uptake of 1 was demonstrated under various concentrations of D-glucose. A screening system was developed for the discovery of anticancer agents by the measurement of glucose uptake in cancer cells with 1. <img src='wiley_img/14337851-2007-46-12-ANIE200604364-content.gif' alt='wiley_img/14337851-2007-46-12-ANIE200604364-content'> </P>