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1.
A new guaianolide,notoserolide E,along with nine known compounds was isolated from the Chinese endemic plant of Notoseris henry (Dunn) Shih and its structure was elucidated by means of spectroscopic evidence. 相似文献
2.
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
3.
Inourinvestigationonthebioactivecomponentsfromplants,thepreliminarybioassaystudiesshowedthatthepetroleumetherextractofEupaloriumadenOPhorumpossessedpotentialinsectantifeedantandinsectcideactivities.Inthepreviouspaper'.weisolatedanewphenylglucosidefromtheaerialpartsofE.adenophorum.FurtherstudyonflowersofE.adenophorumledtotheisolationoftwelvecompounds.Theirstructureswereidentifiedbyspectralanalysisandchemicalreactionasanewsesquiterpenelactonenamedeupatoranolide,2-acetoxy-3,4,6,11-tetradehydroc… 相似文献
4.
MinYANG ZhongJianJIA 《中国化学快报》2004,15(4):417-418
A new guaianolide was isolated from Saussurea macrota.Its structure was elucidated by NMR spectroscopic and X-ray diffraction methods. 相似文献
5.
ThechemicalstudiesofLigulariasongaricahavenotbeenreportedtillnow.Inourpreliminarystudyontherootsofthisplant,anewbisabolanesesquiterpenewasobtainedanditsstructurewasidentifiedasSp-acetoxy-40,8-diangeloyloxy-26,3p,;10,Ildiepoxy-bisabola-7(14)-ene1.,Com... 相似文献
6.
Chromatographic separation ofn-hexane and ethyl acetate fraction of a crude methanol extract obtained from aerial parts of theScorzonera aucherianaDC collected from Sivas province of Turkey yielded nine natural compounds; two new 3-caffeoyl-quinic acid analogs (1-2), one new taraxasterol oleate (3), and six known triterpenoids taraxasterol (4), taraxasterol acetate (5), ptiloepoxide (6), lupeol (7), lupeol acetate (8), andβ-sitosterol (9) were characterized. The structures of the isolated compounds were elucidated on the basis of NMR (1H,13C, COSY, HMBC, HSQC, and TOCSY), UV, FT-IR and LC-Q-TOF-MS spectrometric data. 相似文献
7.
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
8.
a new highly oxygenated eremophilenolide was isolated from Ligulariopsis shichuana. Its structure was elucidated by NMR spectroscopic and X-ray diffraction methods. 相似文献
9.
Inaprelindnary.ommunication',wehavereportedonanewguaianolideartseleninisolatedfromArtemisiaselengensisTurcz(Compositae).Inthepresentpaperwedescribethestructureelucidationofartselenoide1obtainedasanewdimericguaianolidefromthesamepart.1wasobtainedascolorlesspowders,mpl85-l86D,[a]." l25(cO.l,MeOH).TheIRspectrumexhibitedabsorptionbandsduetohydroxyl(3435cm-'),Ylactone(l764cm-')anddoublebond(l648,l635,l456cm-')groups.Themolecularformu1aCstheooof1wasdeducedfromthedataofESIMS(Inlz5l9[M Na] ,53… 相似文献
10.
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
11.
A New Picrotoxane Type Sesquiterpene from Dendrobium densiflorum 总被引:3,自引:0,他引:3
JianTANG QunFangLIU JingQiuDAI WeiMinZHAO 《中国化学快报》2004,15(1):63-64
A new picrotoxane type sesquiterpene named dendrodensiflorol has been isolated from the stems of Dendrobium densiflorum. Its structure was identified on the basis of spectroscopic method. 相似文献
12.
Ligulariajischerihasl0ngbeenusedastraditi0naImedicinet0relievec0ugh,invig0ratethecircuIation0fbIo0dandst0ppain'.FromtheplantgrowinginShengnonaiia,Hubei-Chlna,t\v0neweremophiIen0lideshavebeenisolated.Comp0undlwasneedlecrystalsfrompetr0lether(60-9O'C),m.p.=148-l50'C.ItsformulawasdeterminedasC,,H,'O'by"C-NMRandDEPTspectrainaccordancewiththem0lecularionpeakm/z=280inEIMS.Thetypeofcarbonsignals(5xC,3xCH,4xCH,,4xCH,)(Table2)sh0wedithadabicyclicsesquiterpeneskeletonbearingameth0xy.ahemi-… 相似文献
13.
Bin Wang Guo Qiang Li Pei Ju Qiu Hua Shi Guan Institute of Marine Drugs Food of Ocean University of China Qingdao China 《中国化学快报》2007,18(6):708-710
Two new triterpene fatty esters, 33-tetradecanoyl moradiol 1 and 3β-dodecanoyl moradiol 2, were isolated from Scorzonera mongolica. Their structures were elucidated as 3β-tetradecanoyloxy-28-hydroxylolean-18-ene and 3β-dodecanoyl-28-hydroxyl-olean-18-ene on the basis of IR, MS, ID NMR and extensive 2D NMR spectroscopic analyses. 相似文献
14.
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
15.
XingGenTAN PeiCAO ShuLinPENG LiShengDING 《中国化学快报》2005,16(7):915-917
A new sesquiterpene with a unusual modified germacrane skeleton was isolated from the ethanol extracts of the roots of Biondia hemsleyana and its structure was elucidated as 3β-hydroxy-4,14-cyclogermacra-11-en-9-one by the spectroscopic methods and X-ray crystallography. 相似文献
16.
Sesquiterpene Lactones from Elephantopus scaber 总被引:4,自引:0,他引:4
QiaoLiLIANG ZhiDaMIN 《中国化学快报》2002,13(4):343-344
A new germacranolide sesquiterpene lactone, isoscabertopin, was isolated from Elephantopus scaber together with the known scabertopin. Their structures were determined by spectroscopic methods. 相似文献
17.
A New Sesquiterpene from the Roots of Lindera strychnifolia 总被引:2,自引:0,他引:2
Jian Bei LI Yi DING* Wei Min LI Institute of Materia Medica Chinese Academy of Medical Sciences Beijing Guangzhou University of Traditional Chinese Medicine Guangzhou 《中国化学快报》2002,13(10)
The root of Lindera strychnifolia is used as a palliative and an antispasmodic in traditional chinese medicine. In previous studies of chemical constituents from this plant, more than 20 sesquiterpene lactones have been isolated and their structures were established1-7. In order to compare the difference of chemical constituents extracted by Supercritical Fluid Extraction (SFE) method and by organic solvent, the SFE extract from Lindera strychnifolia was investigated. A novel sesquiterp… 相似文献
18.
A new acyclic sesquiterpene oligoglycoside, named mukurozioside A, was isolated from pericarps of Sapindun mukurossi. On the basis of chemical and spectral evidence, the structure of mukurozioside A has been established as:11(S)-2,6(E,E)-dodecadiene-3,7,11-trimethyl-1,12-diol-1,12-bis-O-α-L-rhamnopyranosyl-(1→2)-[α-L-rhamnopyranosyl-(1→3)]-6-O-acetyl-β-D-Glucopyranoside(1). 相似文献
19.
Amarpreet Kaur Shalinder Kaur Rupali Jandrotia Harminder Pal Singh Daizy Rani Batish Ravinder Kumar Kohli Virendra Singh Rana Najam A. Shakil 《Molecules (Basel, Switzerland)》2021,26(17)
Parthenin, a sesquiterpene lactone of pseudoguaianolide type, is the representative secondary metabolite of the tropical weed Parthenium hysterophorus (Asteraceae). It accounts for a multitude of biological activities, including toxicity, allergenicity, allelopathy, and pharmacological aspects of the plant. Thus far, parthenin and its derivatives have been tested for chemotherapeutic abilities, medicinal properties, and herbicidal/pesticidal activities. However, due to the lack of toxicity–bioactivity relationship studies, the versatile properties of parthenin are relatively less utilised. The possibility of exploiting parthenin in different scientific fields (e.g., chemistry, medicine, and agriculture) makes it a subject of analytical discussion. The present review highlights the multifaceted uses of parthenin, on-going research, constraints in the practical applicability, and the possible workarounds for its successful utilisation. The main aim of this comprehensive discussion is to bring parthenin to the attention of researchers, pharmacologists, natural product chemists, and chemical biologists and to open the door for its multidimensional applications. 相似文献