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Chinesebittersweet(CelaslrusangulalusM.)iswidelydistributedinChina.IthasbeenusedastraditionalplantinsecticideandamedicinalherbformanyyearsinthefolkmedicineofChina'-'.Inpreviousstudies,P-dihydroagarofuransesquiterpenepolyolestersandsesquiterpenealkaloidswerefrequentlyfoundinthecelaslrusfamilyofplants'-',ItwasreportedthatmostofP-dihydroagarofuransesquiterpenepolyolestersfromChinesebit-tersweethaveinhibitoryeffectsonEBVandantitumoractivity'.,'.InourattempttofindnovelbioactivecompoundsintheCh… 相似文献
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Inourpreviouspaper',wereportedthemethodologicstudiesonauthenticatingplantspeciesbyIHNMRfinger-printsofthecharacteristicgeneralextractsofplants.Incontinuationofourworkonthissubject,ourattentionwasdrawntotheassignmentsofthesignalsintheIHNMRfinger-printsofplants,thatwastheinvestigationoftheconstituents.Inthecourseofourresearch,anewsesquiterpenepolyolesternamedangulatinCwasisolatedfromtherootbarkofC.angulatusalongwithaknowncompound,angulatinB.Inadditiontoinsecticidalactivity,angulatinCalsosh… 相似文献
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Shao‐Peng Wei Wen‐Jun Wu Zhi‐Qin Ji Ji‐Wen Zhang Yong‐Ze Guo Jian Xue 《Helvetica chimica acta》2010,93(9):1844-1850
Two novel sesquiterpene polyol esters with a dihydro‐β‐agarofuran (=(3R,5aS,9R,9aS)‐octahydro‐2,2,5a,9‐tetramethyl‐2H‐3,9a‐methano‐1‐benzoxepin) skeleton, (1α,2α,4β,8α,9α)‐1,2,8,12‐tetrakis(acetyloxy)‐9‐(furoyloxy)‐4‐hydroxydihydro‐β‐agarofuran ( 1 ) and (1α,2α,6β,8α,9α)‐1,2,6,8,12‐pentakis(acetyloxy)‐9‐(benzoyloxy)dihydro‐β‐agarofuran ( 2 ), and the three known compounds (1α,2α,4β,6β,8α,9β)‐1,2,6‐tris(acetyloxy)‐9‐(benzoyloxy)‐4‐hydroxy‐8,12‐bis(isobutyryloxy)dihydro‐β‐agarofuran ( 3 ), (1α, 2α,4β,6β,8α,9β)‐1,2,6,8‐tetrakis(acetyloxy)‐9‐(furoyloxy)‐4‐hydroxy‐12‐isobutyryloxy)dihydro‐β‐agarofuran ( 4 ), and (1α,2α,4β,6β,8α,9β)‐1,2,6‐tris(acetyloxy)‐9‐(benzoyloxy)‐4‐hydroxy‐8‐(isobutyryloxy)‐12‐[(2‐methylbutanoyl)oxy]dihydro‐β‐agarofuran ( 5 ) were isolated from the root bark of Celastrus angulatus. Their chemical structures were elucidated by analyses of their MS and NMR data. 相似文献
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Sesquiterpene esters from the fruits of Celastrus orbiculatus 总被引:1,自引:0,他引:1
Three new beta-dihydroagarofuran sesquiterpene esters, 6 alpha-acetoxy-9 beta-benzoyloxy-1 beta-cinnamoyloxy-8 beta-butanoyloxy-beta-dihydroagarofuran (1), 6 alpha-acetoxy-9 beta-benzoyloxy-1 beta-cinnamoyloxy-8 beta-(2-methylbutanoyloxy)-beta-dihydroagarofuran (2), and 6 alpha-acetoxy-1 beta,8 beta-dibenzoyloxy-9 beta-hydroxy-beta-dihydroagarofuran (6), together with three known compounds (3-5) were isolated from the fruits of Celastrus orbiculatus THUNB. Their structures were elucidated on the basis of spectroscopic methods. Compound 4 showed moderate activity in inhibiting LPS-induced nitric oxide production in murine macrophage RAW264.7 cells with an IC(50) value of 43.7 microM. 相似文献
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A new sesquiterpene:11,12,13-trihydroxy-4(15),7(8)-eudesmdien-9-one was isolated from Saussurea parviflora. The structure was elucidated on the basis of spectral evidence. 相似文献
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牛尾蒿中—新倍半萜结构的确定李瑜,杨立,师彦平(兰州大学应用有机化学国家重点实验室,兰州,730000)关键词牛尾蒿,倍半萜,牛尾蒿酮牛尾蒿(ArtemisiaSubdigitata)是菊科蒿属的一种多年生草本植物,广布于华北、东北、西北和西南等地区... 相似文献
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MicheliayunnanensisFr.exFin.etGagnisaChinesetraditionalmedicinefortreatmentofinflammation.Weobtainedanewsesquiterpene1,throughinvestigationoftheplant,togetherwithtwoknowncompoundsPhydroxyarbusculinAZIandparthenolide32.Compound1,needlecrystal,mp146"C,[a];z-2.56(c0.391,CHC13),displayedstrongabsorptionsforhydroxylandestergroups(3339cm-',3298cm',1750..-i,1742cm')inIR.HRFAB MSmlz:389.2168[(M l) ,Cafe.forC19H33OS:389.21751agreedwithmolecularformulaC19H32O8.Fourunsaturations,twoofwhichwer… 相似文献
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ThechemicalstudiesofLigulariasongaricahavenotbeenreportedtillnow.Inourpreliminarystudyontherootsofthisplant,anewbisabolanesesquiterpenewasobtainedanditsstructurewasidentifiedasSp-acetoxy-40,8-diangeloyloxy-26,3p,;10,Ildiepoxy-bisabola-7(14)-ene1.,Com... 相似文献
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ThegenusCremanthodium(ComPositae)isaTibetan-traditionalmedicineusedforanti-inflanunation,painreliefandcuringaPoplexy'.Incontinuationofourstudies0nCremanthodiumplantS',wenowreport0ntheisolahonandstrUctUreelucidationofanewbisabolanesesquiterpenefromCremanth0diumdiscotheum.ComPound1,gum,[a]io53.3(cl.0,CHCl3),TheFABmassspectrUmsh0wedaquasim0lecularionpeak559[M H] anditSisotopicpeakofll3intensityatInlz56l,whichsuggestedthemolecularformulatobeC28ffi3O9Clinagreementwiththe13CNMRandDEPTsp… 相似文献
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JianXinPU JingFengZHAO XiaoDongYANG ShuangXiMEI HongBinZHANG LiangLI 《中国化学快报》2004,15(12):1454-1456
A new sesquiterpene lactone, Ainsliaolide A, was isolated from Ainsliaea bonatii. The structure was determined on the basis of spectral data. 相似文献
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A new Eremophilanoid sesquiterpene(1) was isolated from the whole plant of Senecio oldhaminus. Its structure was elucidated as 7β,11-epoxy-9α,10α-epoxy-8-oxoeremophilane using spectroscopic methords and X-ray analysis. 相似文献
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A New Sesquiterpene Lactone from Scorzonera austriaca 总被引:2,自引:0,他引:2
JuanLI QuanXiangwu YanPingSHI YingZHU 《中国化学快报》2004,15(11):1309-1310
A new guaianolide was isolated from the roots of Scorzonera austriaca. The structurewas elucidated on the basis of spectral methods including 2D NMR. 相似文献
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Zhou Yun-Yun Jin Chen-Zhong Ma Ying-Qun Zhang Xue-Jiao Liu Xiu Xiao Shun-Li 《Chemistry of Natural Compounds》2022,58(1):47-49
Chemistry of Natural Compounds - A new eudesmane sesquiterpene, 12-acetoxy-1β,2α-dihydroxyeudesma-4(15),11(13)-diene (1), was isolated from Inula japonica. The chemical structure of... 相似文献
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A new nortriterpene, 2‐hydroxy‐3‐methyl‐21‐oxo‐12,24‐dinor‐D : B‐friedooleana‐1,3,5(10),7‐tetraen‐29‐oic acid ( 1 ), was isolated from the root of Celastrus hypoleucus, together with the two known compounds, celastorol ( 2 ) and pristimerine ( 3 ). Their structures were elucidated on the basis of spectroscopic analyses. Compounds 1 – 3 exhibited in vitro significant antioxidant (against lipid peroxidation; by the TBARS method) and antitumor activities (against cancer cell lines P‐388, A‐549, HL‐60, and BEL‐7402). 相似文献
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Liaqat Ali Imtiaz Hussain Tania Shamim Rizvi Abdul Latif Khan Shaukat Shujah Jawahar Mohammed Salim Al‐Sahi Ahmed Al‐Harrasi Javid Hussain 《Helvetica chimica acta》2015,98(10):1462-1465
A new trihydroxy sesquiterpene, rel‐(1R,4aR,5S,6S,7S,8aR)‐decahydro‐6,8a‐dimethyl‐5‐(propan‐2‐yl)naphthalene‐1,6,7‐triol ( 1 ), has been isolated as a result of the phytochemical investigation on the CH2Cl2 extract of Teucrium mascatense. The structure elucidation of the new constituent was carried out by the combined use of 1D‐ (1H‐ and 13C‐NMR) and 2D‐NMR (HMBC and HSQC) spectroscopic analysis, along with mass spectrometric techniques. In addition to the new constituent 1 , the known metabolite 2 , previously isolated from Crataegus pinnatifida, was also identified. 相似文献