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Two isomeric compounds of C_(13)-norisoprenoids from Saururus chinensis(Lour.) Baill

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Chinese Chemical Letters 2009年第11期20卷 1342-1344页

作者： Wei Qu jing yu liang Department of Natural Medicinal Chemistry China Pharmaceutical University Nanjing 210009 China

Two new isomeric compounds of rare acyclic C13-norisoprenoids, along with two known lignans sauchinone and licarin A, were isolated from the herb of Saururus chinensis （Lour.） Baill. Their structures were elucidated... 详细信息

关键词： Saururus chinensis Acyclic C13-norisoprenoids

Evodiagenine and dievodiamine,two new indole alkaloids from Evodia rutaecarpa

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Chinese Chemical Letters 2010年第5期21卷 596-599页

作者： Qi Zhi Wang jing yu liang Xu Feng Institute of Botany Jiangsu Province and Chinese Academy of SciencesNanjing 210014China Department of Natural Medicinal Chemistry China Pharmaceutical UniversityNanjing 210009China

Two new indole alkaloids,evodiagenine 1 and dievodiamine 2 were isolated from the fruits of Evodia rutaecarpa(Juss.) Benth. The structure of compounds 1 and 2 were elucidated by comprehensive spectroscopic analysis an... 详细信息

关键词： Evodia rutaecarpa(Juss.) Benth Evodiagenine Dievodiamine

Triterpene saponins with XOD inhibitory activity from the roots of Ilex pubescens

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Chinese Chemical Letters 2011年第6期22卷 697-700页

作者： Li Ping Lin Wei Qu jing yu liang Department of Natural Medicinal Chemistry China Pharmaceutical University Nanjing 210009 China

A new triterpene saponin with 28-nor-urs-12（13）,18（17）-dien-3β-ol as aglycone,named ilexsaponin C（1） was isolated from the roots of Ilex pubescens,together with three known saponins 2,3 and *** structure of 1 was elucidated on the basis of spectral analysis including 1D and 2D NMR and *** 1 and 4 exhibited significant XOD inhibitory activity in the test.

关键词： Triterpene saponin Ilex pubescens Ilexsaponin C Xanthine oxidase

Viscosity and surface tension of CaF_(2)-CaO-Al_(2)O_(3)-based slag with varying SiO_(2) and B_(2)O_(3) contents for ESR of rotor steel

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Journal of Iron and Steel Research International 2023年第1期30卷 74-81页

作者： Yi Huang Cheng-bin Shi Xiu-xiu Wan yu-jing liang jing Li Shu-jie Liu State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China Xingtai Shuzhi Metallurgy Technology Co. Ltd.Xingtai 054027HebeiChina

The effect of SiO_(2) and B_(2)O_(3) on viscosity and surface tension of CaF_(2)-CaO-Al_(2)O_(3)-MgO-SiO_(2)-B_(2)O_(3) slag designed for electroslag remelting of rotor steel was *** viscosity of the slag melts increases with increasing the SiO_(2) content from 0.37 to 8.03 mass%,and the viscous activation energy increases from 54.21 to 58.49 kJ/*** B_(2)O_(3) content of the slag from 0 to 3.62 mass%exhibits a similar effect on the viscosity,and the activation energy increases from 47.30 to 55.71 kJ/*** increase in the viscosity and activation energy for viscous flow of slag is attributed to the enhanced polymerization degree of slag melts network with increasing either SiO_(2) or B_(2)O_(3) *** surface tension of slag melts decreases with increasing *** surface tension of slag melts decreases with increasing either SiO_(2) or B_(2)O_(3) content,which is originated from the increase in the polymerization degree and the decrease in the CaO content of the slag.

关键词： High-fluoride slag Structure Viscosity Surface tension Activation energy

A novel dimeric diarylheptanoid from the rhizomes of Alpinia officinarum

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Chinese Chemical Letters 2012年第2期23卷 189-192页

作者： Dan Liu Wei Qu Ling Zhao jing yu liang Department of Natural Medicinal Chemistry China Pharmaceutical UniversityNanjing 210009China College of Biotechnology and Pharmaceutical Engineering Wuhan Polytechnic UniversityWuhan 430023China

A novel dimeric diarylheptanoid,named alpinin A（1）,along with two known compounds,1,7-diphenyl-5-ol-3-heptanone and 7- （4＇-hydroxy-3＇-methoxyphenyl）-l-phenyl-4-heptene-3-one,were isolated from the rhizomes of Alpinia officinarum *** structure of compound 1 was elucidated on the basis of spectral analysis,including HR-IT-TOF-MS,1D and 2D *** a possible biogenetic pathway had been proposed for 1.

关键词： Alpinia officinarum Hance Diarylheptanoid Alpinin A

Water-Soluble Constituents of Cudrania tricuspidata(Carr.) Bur.

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Journal of Integrative Plant Biology 2006年第8期48卷 996-1000页

作者： Zong-Ping Zheng jing-yu liang Li-Hong Hu Shanghai Research Center for Modernization of Traditional Chinese Medicine Shanghai Institute of Materia Medica Shanghai 201203 China Department of Natural Medicinal Chemistry China Pharmaceutical University Nanjing 210009 China

In order to find new structural and biologically active compounds, the constituents of the bark of Cudrania tricuspidata （Carr.） Bur. were investigated and a new 6-p-hydroxybenzyltaxifolin glucoside, named tricusposide （compound 1）, together with 16 known compounds, was isolated by solvent partition, macroporous adsorption resin AB-8, silica gel, Sephadex LH-20 chromatography. Using spectroscopic methods, the structures of the compounds were elucidated as 6-p-hydroxybenzyl taxifolin-7-O-β-D-glucoside （compound 1）, dihydroquerctin-7-O-β-D-glucoside （compound 2）, dihydrokaempferol-3-O-β-D-glucoside （compound 3）, dihydroquercetin （compound 4）, peonoside （compound 5）, sphaerobioside （compound 6）, quercimeritrin （compound 7）, genistein （compound 8）, aromadendrin （compound 9）, kaempferol （compound 10）, genistin （compound 11）, 3,4-dihydroxystyryl alcohol （compound 12）, sucrose （compound 13）, 1,3,5,6-tetrahydroxyxanthone （compound 14）, gericudranin E （compound 15）, gericudranin C （compound 16）, and orobol （compound 17）. Compounds 2-6, 8, 9, 12-14, and 17 were isolated from this genus for the first time.

关键词： Cudrania tricuspidata flavones water-soluble fraction.

Two new homoisoflavanones from Polygonatum odoratum (Mill.) Druce

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Chinese Chemical Letters 2010年第6期21卷 706-708页

作者： Yong Qian jing yu liang Wei Qu Yanyun Che Department of Natural Medicinal Chemistry China Pharmaceutical UniversityNanjing 210009China

Two new homoisoflavanones were isolated from the rhizomes of Polygonatum odoratum(Mill.) Druce and their structures were elucidated as(3R)-5,7-dihydroxy-8-methoxy-3-(4-methoxybenzyl)-6-methylchrom-an-4-one(1) and(3R)-... 详细信息

关键词： Polygonatum odoratum (Mill.) Druce Liliaceae Homoisoflavanone

The first examples of ilexgenin A hybrids as a new class of multi-potent,anti-platelet agents

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Chinese Chemical Letters 2013年第8期24卷 723-726页

作者： Li-Ping Lin Fei-Hua Wu jing-yu liang School of Traditional Chinese Pharmacy China Pharmaceutical University Jiangsu Center for Research & Development of Medicinal Plants Institute of BotanyJiangsu Province and Chinese Academy of Sciences

Seventeen novel ilexgenin A hybrids（lA-aspirin） and（IA-NO）,as donor hybrids（IA-NO will release NO in vivo and function as NO donor）,were designed and synthesized in order to develop new multi-targeting agents for the treatment of platelet *** in vitro activities against ADP,AA and thrombin were *** a result,IA hybrids achieved substantial increases in the three tested pathways compared with ***,the most potent hybrid compounds 6d and 14d displayed about 8-fold higher potency than aspirin,and 3-fold higher potency than the simultaneous administration of aspirin and IA in inhibiting ADP-induced aggregation with IC_（50） values of 0.15 mmol/L and 0.14 mmol/L,respectively. The results suggest these IA hybrids are good candidates for multi-target therapies,and especially,may be considered as promising ADP agonists.

关键词： Ilexgenin A Hybrids Multi-potent anti-platelet activity ADP agonists

TWO new rotenoids from the root of Derris elliptica

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Chinese Chemical Letters 2008年第10期19卷 1218-1220页

作者： Hai Ying Lu jing yu liang Ping yu Wei Qu Ling Zhao Department of Natural Medicinal Chemistry China Pharmaceutical University Nanjing 210009 PR China

Two new rotenoids 4＇,5＇-dihydroxy-6a,12a-dehydrodeguelin （1）,11.4t,5＇-tdhydroxy-6a,12a-dehydrodeguelin （2）, along with two known rotenoids rotenone and deguelin were isolated from the root of Derris elliptica c... 详细信息

关键词： Derris elliptica Rotenoid