【摘 要】
：
Three new monophenanthrene compounds were isolated from an acetone extract of the tubers of Monomeria barbata Lindl. (Orchidaceae). Using spectroscopic methods,
【机 构】
：
Key Laboratory of Medicinal Chemistry for Nature Resource,Department of Biochemistry
【基金项目】
：
a program for new Century Excellent talents in Uni;云南省自然科学基金
论文部分内容阅读
Three new monophenanthrene compounds were isolated from an acetone extract of the tubers of Monomeria barbata Lindl. (Orchidaceae). Using spectroscopic methods, the structures of compounds 1-3 were determined as 1,4,7-trihydroxy-2-methoxy-9,10-dihydrophenanthrene (1), 1-(p-hydroxybenzoyl)-2-methoxy-4,7-dihydroxy-9,10-dihydrophenunthrene (2), 1,3,8-tri(p-hydroxybenzyl)-4-methoxy-phenanthrene-4,7-diol (3). These compounds showed cytotoxicities on four tumor cell lines (HepG2, HL-60, Skov-3, A431).
其他文献
Many degenerative diseases caused by uncontrolled cell death can be intervened pharmaceutically through inhibiting caspase-3 activity that leads to cell apoptos
CIG(集成芯片玻璃)VFD(真空显示屏)具有多种优点,现在已经得到多方面的应用.但其外围驱动模块多为VFD厂商提供的标准模块,缺少CAN接口.本文以PIC18F258单片机为控制芯片,构成
2-[3,5-Di-O-β-D-glucosyl-4-(3-methylbut-2-enyl)phenyl]benzofuran-6-ol, a new prenylated arylbenzofuran derivative was isolated from Morus alba L. Its structure
Heparan sulphate proteoglycans (HSPGs) consist of a core protein and several heparan sulphate (HS) side chains covalently linked. HS also binds a great deal of
Background Astrocyte swelling is an important consequence of hepatic encephalopathy, and aquaporin-4 has been reported to play a vital role in this swelling. Am
AIM:To explore whether predisposition to autoimmune gastritis (AIG) is found in human leukocyte antigen (HLA), cytokine or killer cell immunoglobulin-like recep
With the rapid increasing capacity of flash memory,flash-aware indexing techniques are highly desirable for flash devices.The unique features of flash memory,su
Background Granulocyte colony-stimulating factor (G-CSF) seems to improve cardiac function and perfusion when used systemically through mobilization of stem cel
AIM: To assess serum concentrations of prohepcidin in chronic hepatitis C individuals and evaluate their associations with disease activity and efficacy of pegy
In this article, the authors study some basic properties of the so-called quasilinear-additive functions, and some applications to the special functions of quas