We investigated constituent of triterpenoid saponins ofAlbizzia, two new compounds together with two known compounds were isolated from Albizzia julibrissin Durazz. by using column chromatography (macroreticular resin, silica gel, Sephadex gel, reverse phase silica gel),preparative HPLC methods et al.On the basis of spectroscopic analysis, including IR,ESI-MS,~1H-NMR,~(13)C-NMR,HMBC,HMQC,~1H-~1HCOSY and chemical methods, the structure of two new compounds were identified as 3 - O -[β-D-xylopyranosyl(1→2)-β-D-fucopyranosyl (1→6)-β- D -2- deoxy - 2 - acetoamidoglucopyranosyl] -21-O-[(6S)-2- trans- 2,6-dimethyl - 6 - O-β- D - quinovopyranosyl -2,7- octadienoyl] - acacic acid- 28 - O-β-D-glucopyranosyl(1→3)[α-L-arabinofuranosyl(1→4)]-α-L-rhamnopyranosyl(1→2)-β-D-glucopyranoside acacic acid 3- O -β- D- glucopyranosy(1→3)-β- D- fucopyranosl(1→6) [β-D- xylopyranosyl (1→2)]-β-D-glucopyranoside ;two known compounds were acacic acid lactone 3- O -β-D- xylopyranosyl-(1→2)-β-D-fucopyranosl (1→6)- 2-deoxy -2 -acetoamido -β-D- glucopyranoside ; acacic acid lactone 3- O-β-D-xylopyranosyl(1→2)-α-L- arabinopyranosl (1→6)- 2- deoxy - 2- acetoamido -β-D-glucopyranoside . The study lays chemical foundation and chemical reference substance for enhancing quality standard of Albizzia julibrissin Durazz.

本研究論文在綜述國內(nèi)外對合歡屬Albizzia三萜皂苷化學(xué)成分和藥理作用研究進展的基礎(chǔ)上，利用傳統(tǒng)植化分離手段和現(xiàn)代分離技術(shù)，包括大孔樹脂、硅膠、葡聚糖凝膠最新国产精品久久精品、反相硅膠等柱色譜起青草公开免费视频，制備高效液相色譜法等技術(shù)從中藥合歡皮中分離得到了4個化合物，其中欧美a网址，2個新化合物和2個己知化合物五月花av，并進一步通過現(xiàn)代分析技術(shù)IR，ESI-MSa资源在线观看免费观看，~1H-NMR人狠人人操人人A级片，~(13C-NMR，HMBC在线观看黄色免费，HMQC免费看看a的网站，~1H-~1HCOSY等和化學(xué)方法鑒定了2個新化合物的結(jié)構(gòu)分別是：3-O-[β-D-吡喃木糖基(1→2)-β-D-吡喃夫糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖基]-21-O-[(6S)-2-反式-2，6-二甲基-6-O-β-D-吡喃雞納糖基-2亚洲欧洲天堂网，7-辛二烯酸基]-金合歡酸-28-O-α-L-呋喃阿拉伯糖基(1→4)[β-D-吡喃葡萄糖基(1→3)]-α-L-吡喃鼠李糖基(1→2)-β-D-吡喃葡萄糖苷婷婷丁香五月天堂网，金合歡酸3-O-β-D-吡喃葡萄糖基(1→3)-β-D-吡喃夫糖基(1→6)[β-D-吡喃木糖基(1→2)]-β-D-吡喃葡萄糖苷；2個已知化合物結(jié)構(gòu)分別是：金和歡酸內(nèi)酯3-O-β-D-吡喃木糖基(1→2)-β-D-吡喃夫糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖苷欧美性交农夫导航，金和歡酸內(nèi)酯3-O-β-D-吡喃木糖基(1→2)-α-L-吡喃阿拉伯糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖苷欧美日韩国产无线码一区。

The melt extrusion mixtures do not include certain additives such as polyoxy- alkylene compounds, alkylmonoethonolamide compounds, alkyldiethanolamine compounds and polyetheramide compounds.

熔體擠出混合物不包括某些添加劑如聚氧化烯化合物、烷基單乙醇酰胺化合物国模视频、烷基二乙醇胺化合物和聚醚酰胺化合物性无码专区一级。

The content of heterocyclic compounds in meat flavoring was more than other compounds. There were twenty-three sulfides in forty heterocyclic compounds. The pH 5 meat flavoring had fewer flavor compounds. In all pH samples, when pH was increasing, pyrazine content was increasing too.

在40種的雜環(huán)類化合物中有23種為含硫化物。pH 5的部份產(chǎn)生的風味化合物較少国产免费性生活视频。pH 5~9中又色又爽又黄的黄网站18禁，pyrazine的含量有隨著pH的上升而逐漸增加的趨勢。

The binary compounds, trinary compounds, four components compounds and full components compounds were also able to elicit higher EAG response, which were significantly higher than that of single component.

二元混合物欧美日韩操、三元混合物无码中文AV波多野吉衣迅雷下载、四元混合物和全組分的EAG反應(yīng)較高，其EAG反應(yīng)值均顯著高于單組分的反應(yīng)值国产黄色无码一级视频。

Several anti-tumor cell lines and carbonic anhydrase Ⅱ model were established. More than 10000 compounds and extracts from plants were screened using these models and about 10 compounds showed strong inhibitory activities. Two species of plants Inula helianthus-aquatica and Saussurea deltoidea were chosen to investigate chemical and bioactivity constituents based on the results of screening of extracts and fractions. 58 compounds were isolated and identified from these two plants, 6 compounds were found to be new and 14 compounds showed anti-tumor activities. We also studied the anti-tumor mechanism of the compound bigelovin isolated from Inula helianthus-aquatica. Bigelovin was found with apoptotic activity against cell line U266 by lowering the amount of important transcription factor E2F-1 which inhibits the cell cycle at G0/G1 stage. Docking study on 7 natural new phenolic inhibitors of CA Ⅱ and 3D-QSAR study on 61 sulfonamide inhibitors of CA Ⅱwere also investigated. The calculated results were in good correlation with experimental results.

基于以上兩種重要疾病和研究組方向337啪啪肉体，本論文工作開展了多個腫瘤細胞株和碳酸酐酶Ⅱ靶標模型的建立和篩選工作，累計篩選1萬多個/次樣品一级做受毛片免费大片一级做一级，發(fā)現(xiàn)10余個活性較強化合物免费2级黄网站；從粗提取物篩選結(jié)果中選取兩種抗腫瘤活性強的菊科植物水朝陽旋覆花(Inula helianthus-aquatica)和三角葉鳳毛菊進行了系統(tǒng)化學(xué)和活性成分研究，分離鑒定了58個化合物，發(fā)現(xiàn)6個新化合物和14個抗腫瘤活性化合物啊啊插进去在线观看免费网站视频；通過合作對水朝陽旋覆花中活性較強的bigelovin進行了抗腫瘤作用機制研究www.精品在线观看，發(fā)現(xiàn)它可能是通過降低G2期重要的轉(zhuǎn)錄因子E2F-1，致使細胞周期阻滯在G0/G1期中文字幕熟女av一区二区绿萝，引起多發(fā)性骨髓瘤U266細胞凋亡久久最新视频香蕉网址大全；開展了7個新的天然酚類CAⅡ抑制劑的對接研究和61個合成的系列磺酰胺類CAⅡ抑制劑的3D-QSAR分析，結(jié)果表明計算與實驗一致自拍偷2。

The results of the present research are as follows, The correlation between physico-chemical properties of organic compounds and their competitive power was studied, and it was indicated that organic compounds preferable to form H-bonding with organic matter of sorbents have stronger competitive power; Sorption behaviors of ionizable organic compounds in different species and their competitive power were examined, and the results showed that phenols and carbonxylic acids with benzyl circle have much stronger competitive power in molecular species than in ionized species, because negative charges of anionic forms can depressed their adsorption on the surface of the sediment; in contrast, organic bases such as aniline and p-chloroaniline show weaker competitive power in molecular species than in ionized species, and this is because both species of the organic bases could adsorb strongly onto the sediment; there is a correlation between competitive power of organic pollutants in multi-solute systems and their sorption isotherm nonlinearity in single-solute systems, and organic compounds whose sorption isotherms is linear in single-solute systems hardly have competitive power in multi-solute systems; Competitive sorption effects in more than two-solutes systems was studied, and it was exhibited that mixture of two cosolutes each of which could suppress sorption of nominal solute onto the sediment had synergistically competitive sorption effect on the nominal solute; A method about incorporating sorption/desorption of organic pollutants into river water quality model was developed, and discussion about degree of sorption/desorption effect on model prediction for different organic compounds was made, which will provide theoretical basis and practical processes for setting up more accurate water quality model.

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Synthesis of organic sulfuric compounds in aqueous media is carried out by: using thio-olefin compounds with carbonyl compounds, acetal/keltone, hydrazone, oxime, osazone and enamine to synthesize mercaptal/keltone compounds in aqueous media; using thio-olefin compounds with alpha-hydroxyaldehyde/keltone or alpha-halogenated aldehyde/keltone to synthesize thia-olefin derivatives in a queous media; using thio-olefin compounds with alpha, beta-unsaturated hydroxy compounds, C-C treble bond, C-N treble bond, C-C double bond, N-N double bond, C-N double bond, C-S double bond, epoxy and its derivatives, aziridine and its derivatives, cyclopropane and its derivatives and halogenated carboxy to synthesize sulfoether compounds in a queous media.

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Gas chromatography and mass spectrometry technique were employed to analyze the ginger oleoresin. This analysis resulted in the detection of 3 hitherto unknown natural compounds, 24 compounds previously reported as pungent compounds and 50 volatile compounds from ginger. The volatile compounds were mainly α-zingiberene (22.29%),β-sesquiphellandrene (8.58%),α-farnesene (3.93%),β-bisabolene (3.87%),α-curcumene (2.63%), which were mostly consisted of sesquiterpene hydrocarbons.

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The results showed that 42 compounds were identified from perianth at 5 stages, including 18 terpenoid compounds, 7 ester compounds, 4 alcohol compounds, 1 ketone compound, 11 alkanes compounds and 1 unknown compound.

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