匙叶八角中一个新的倍半木脂素

从匙叶八角(Illicium spathulatum)果实中分离得到一个新的倍半新木脂素,通过现代波谱技术确定其结构为7′, 8′-反式-7″, 8″ 顺式-5, 3′,3″-三甲氧基倍半新木脂素。     

匙叶八角中一个新的倍半木脂素（英文）

从匙叶八角（Illicium spathulatum）果实中分离得到一个新的倍半新木脂素,通过现代波谱技术确定其结构为7′,8′-反式-7″,8″-顺式-5,3′,3″-三甲氧基倍半新木脂素。     

青阳参根中一个新的苯二氢化萘型木脂素

为了解青阳参(Cynanchum otophyllum Schneid)根的酸催化水解物化学成分.利用硅胶柱色谱、ODS、HPLC等多种柱色谱分离手段对青阳参95％乙醇提取物的酸催化水解物进行了分离纯化,从中得到了4个木脂素,通过波谱学方法鉴定其结构,分别为9'-methoxynegundin B(1)、(+)-iso...     

长缘厚朴中的新苯醌及新木脂素类化合物

从长缘厚朴（Magnolia rostrata W.W.Smith)树皮中分离得到１个新化合物－联烯丙基苯对苯醌类物质,命名为木兰醌magnoquinone(1),以及７个已知新木脂素类化合物,厚朴酚magnolol(2),和厚朴酚honokiol(3),4-o-methylhonokiol(4),3-o-methylmagnolol(5),magnoldehydeB(6),magnolignanA(7)和magnolignanC(8)。研究表明,长缘厚扑可作为中药厚朴（Magnolia officinalis)的代用品。     

云南铁杉中一个新的倍半木脂素

从云南铁杉(Tsuga dumosa) 心材中分离得到9 个化合物, 采用波谱方法鉴定了它们的结构。其中化合物1 (3 (4 hydroxy 3 methoxy benzyl ) 5 [2 (4 hydroxy 3 methoxy phenyl ) 3 hy droxymethyl 7 methoxy 2, 3 dihydro benzofuran 5 yl] 4 hydroxymethyl dihydro furan 2 one) 为一个新的倍半木脂素, 命名为dumosaol, 2~9为首次从该种植物中分离得到。     

红蓼中木脂素成分的研究

从红蓼（ＰｏｌｙｇｏｎｕｍｏｒｉｅｎｔａｌｅＬ．）中分得３个木脂素类化合物,经光谱分析和化学方法鉴定为牛蒡子甙（１）、拉帕酚Ｂ（２）和红蓼脂素（３）。其中化合物３为新化合物,１和２为首次从该植物中分离得到。     

被子植物木脂素研究进展

本文报道了木脂素研究的新进展，着重介绍了木脂素在被子植物中的分布及其在药学和化学分类学上的应用     

披针叶胡颓子中的一个新木脂素

从披针叶胡颓子（Elaeagnus lanceolata）的干燥枝叶中分离得到19个化合物,其中isoamericanol B（1）为一新化合物,经波谱学方法鉴定其结构为rel-（7′Z）-（7β,8α）-3-methoxy-4,9′-dihydroxy-3′,7-epox-y-8,4′-oxyneolign-7′-ene。     

鸡脚参化学成分研究

从鸡脚参[Orthosiphon wulfenioides(Dies)Hand．-Mazz]根部分离得到5种物质(Ⅰ～Ⅴ),通过波谱分析鉴定Ⅰ～Ⅳ为豆甾醇(Ⅰ)、豆甾醇-3-O-β-D-吡喃葡萄糖甙(Ⅱ)、6,7-去氢罗伊林酮(Ⅲ)和白桦酸(Ⅳ),Ⅴ为齐墩果酸与乌苏酸的混合物。     

Stereoselective Model Synthesis of the Optically Active Olivil Type of Lignan from D-Xylose

The olivil type of lignan, (2S,3R,4R)-4-benzyl-4- hydroxy-3-hydroxymethyl-2-(3,4-methylenedioxyphenyl)tetrahydrofuran, was stereoselectively synthesized from D-xylose.     

Stereoselective Synthesis of the Optically Active Samin Type of Lignan from L-Glutamic Acid

The optically active samin type of lignan, (1R,2S,5R, 6S)-6-(2-methoxy-4,5-methylenedioxyphenyl)-3,7-dioxabicyclo[3.3.0]octan-2-ol, was stereoselectively synthesized from L-glutamic acid via (2R,3R)-2-[(1S and R)- 1-[(tert-butyldimethylsilyl)oxy]-1-(2-methoxy-4,5-methylenedioxyphenyl)methyl]-3-[(tert-butyldiphenylsilyl)oxy]methyl-1,4-butanediol.     

Lignan Glucosides from Sinomenium acutum Rhizomes

The new lignan glucoside, acutumoside (1), was isolated from Sinomenium acutum rhizomes together with nine known compounds (2–10). The structure of 1 was elucidated on the basis of extensive spectroscopic analyses, including two-dimensional nuclear magnetic resonance and chemical reactions. Compounds 2, 7, 8, and 10 displayed potential antiproliferative activity against A549, SK-OV-3, SK-MEL-2, and HCT-15 cell lines, while compound 1 showed weak activity against these human tumor cells.     

狭基线纹香茶菜中一个新的木脂素类化合物(英文)

从狭基线纹香茶菜 (Isodonlophanthoidesvar.gerardianus [Bentham]H .Hara)的乙酸乙酯部分分离得到两个木脂素类化合物 ,经 1D、2D_NMR技术鉴定 ,分别为 1_acetoxyl_2e,6e_dipiperonyl_3,7_dioxabicyclo_[3,3,0 ]_octane (1)和 1_acetoxyl_2e_piperonyl_6e_[6_methoxyl_piperonyl]_3,7_dioxabicyclo_[3,3,0 ]_octane (2 ) ,其中 2为新化合物。     

Erimopyrone,a Lignan Derivative from the Liverwort Moerckia erimona

The new lignan derivative, erimopyrone, was isolated from the liverwort, Moerckia erimona. Its structure was established as [1R, 2S]-1(6-carboxy-2-oxo-2H-4-pyranyl)- 6,7-dihydroxy-1,2-dihydro-2,3-naphthalenedicarboxylic acid by spectroscopic methods.     

First Stereoselective Synthesis of (+)-Magnostellin C,a Tetrahydrofuran Type of Lignan Bearing a Chiral Secondary Benzyl Alcohol

(+)-Magnostellin C, which is a tetrahydrofuran type of lignan bearing a chiral secondary benzylic hydroxy group, was stereoselectively synthesized from L-arabinose by using threo selective aldol condensation.     

大叶仙茅中一个新的木脂素苷

从采自云南西双版纳的大叶仙茅(Curculigo capitulata)中分离得到一个新的木脂素苷和8个已知化合物,通过光谱方法、化学方法和与参考文献比较(质谱,氢谱和碳谱)的方法鉴定了它们的结构。其中化合物2—7为首次从该植物中分离得到。     

Inhibition of the Discoloration of Yellowtail Dark Muscle by Lignan

The inhibitory effect of (?)-, (+)-matairesinol and (?)-, (+)-secoisolariciresinol on the discoloration of dark muscle (chiai in Japanese) of two-year-old yellowtail (hamachi in Japanese) was evaluated by measuring the X and a^* values. (?)-Matairesinol was most effective for retaining the red color of dark muscle in this experiment.     

Establishment of Orthosiphon stamineus Cell Suspension Culture for Cell Growth

Callus of Orthosiphon stamineus could be induced successfully from petiole, leaf and stem tissues but not roots when cultured on MS medium containing different concentration of NAA (0–4.0 mg l^–1) and 2,4-D (0–2.0 mg l^–1). Highest fresh weight callus production was obtained from leaf explants and those with best friability were obtained on MS medium plus 1.0 mg l^–1 2,4-D plus 1.0 mg l^–1 NAA. Cell suspension cultures were established from these cultures. The appropriate cell inoculum size for the best cell growth was 0.75 g of cells in 20 ml culture medium. Cell suspension culture using MS medium supplemented with 1.0 mg l^–1 2,4-D promoted the best cell growth with maximum biomass of 8.609 g fresh weight and 0.309 g dry weight 24 days after inoculation. Cells that grew in MS medium supplemented with 1.0 mg l^–1 2,4-D reached the stationary growth phase in 15 days as compared to the cells that grew in MS medium supplemented with 1.0 mg l^–1 2,4-D + 1.0 mg l^–1 NAA reached the stationary phase in 24 days. MS medium supplemented with 1.0 mg l^–1 2,4-D was considered as the maintenance medium for maintaining the optimum cell growth of O. stamineus in the cell suspension cultures with 2-week interval subculture.