简介：新alkylenedihydrofuranglycoside(1)从根被孤立桑属albaL.吠叫，与moracinM-3鈥?O-尾-一起d-glucopyranoside(2)，和moracinM-6，3鈥?di-O-尾-d-glucopyranoside(3)。化合物1作为2-methylene-3-methoxy-2被识别，5-dihydrofuran-4-O-尾-d-glucopyranoside根据包括1D和2DNMR的化学、分光镜的数据光谱分析。另外，1的抗氧化剂活动用1,1-diphenyl-2-picrylhydrazyl(DPPH)和2,2鈥?azinobis-3-ethylbenzothiazoline-6-sulphonic被评估酸(ABTS)试金。IC50价值分别地是2.49和0.45mg/mL。

简介：一新stenine类型碱，和五已知的stenine类型碱(2–6)和二已知的stemoninine类型碱(7和8)，tuberostemonineD(1)从Stemonatuberosa的根被孤立。他们的结构被广泛的分光镜的方法阐明(红外，紫外，MS，1D和2DNMR)，并且1的结构被X光检查衍射分析进一步证实。stenine类型和stemoninine类型碱的第一同时的隔离不仅增加了一种新化学类型并且增加了Stemonatuberosa的化学差异，而且为在类Stemona和Stichoneuron之间的靠近的关系提供了chemotaxonomic线索，并且赞成了在一样的家庭保留他们。

简介：Thenanomaterialsoftenexhibitveryinterestingelectrical,optical,magnetic,andchemicalproperties,whichcannotbeachievedbytheirbulkcounterparts[1-7].Thedevelopmentofuniformnanometersizedparticleshasbeenintensivelypursuedbecauseoftheirtechnologicalandfundamentalscientificimportance[8-15].Itissignificantthatnanostructuredmaterialscanbecontrollablyassembledintotherequiredgeometryontosubstrates,becomingthebasisofthenextgenerationofcomponentsanddevices[16-31].Thedevelopmentofnewmethodsandstrategiesfororganizingthenanoparticlebasicbuildingblocksintothedesiredstructuresisrequired.Superlatticesmadefromthesebuildingblocksgiveustheopportunitytostudynotonlythepropertiesoftheindividualbuildingblocks,butalsocollectiveeffects.Thesuperparamagneticironoxidenanocrystals(NCs)havebeenusedinthefieldsofbio-medicine,ferrofluids,refrigerationsystem,catalysis,particularlyinmagneticresonanceimaging,tissueengineering,anddrugdeliveryapplications[32-42].

简介：为了推进，从抗菌剂fluoroquinolone(FQ)为移动扩展一条有效修改线路到antitumorFQ，标题混合物的二个系列基于有二的FQC3羧基的组的isostere熔化了杂环的戒指，[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine和pyrazolo[5,1-c][1,2,4]分别地，triazole被设计并且综合了从当前的抗菌剂FQ开始，并且他们的在里面对L1210的vitroantitumor活动，CHO房间线经由他们的各自的IC被评估

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简介：短离子的液体(IL)基于的A整体的子弹被准备并且用作选择抽取吸着剂。在材料由领域被评估以后扫描排放的电子显微镜学(FE-SEM)，为从Chamaecyparisobtusa的橡黄素和myricetin的抽取和决心的一条新途径(C。obtusa)由使用基于ILs的、整体的子弹，系统被开发。色析法的分析在372nm与紫外察觉在C18列上被进行，由acetonitrile水组成的一个eluting答案(25/75，V/V)作为活动阶段，和0.7mL琠慨?癥湥的流动率吗？

简介：Pillar[n]arenesareanewkindofsupramolecularmacrocyclichostswhichhavedevelopedrapidlyduetotheiruniquetopologyandhighfunctionality,givingrisetomanyapplicationsintheconstructionofinterestingandfunctionalmaterials.Amongthem,water-solublepillar[n]arenesbearingtriethyleneoxide(TEO)chainshavedrawnincreasingresearchinterestduetotheiradvantageousproperties.Inthisreview,wesummarizedtherecentprogressofdynamicmaterialsfabricatedfromwatersolublepillar[n]arenesbearingTEOgroups,includingthermoresponsivematerialswithlowercriticalsolutiontemperature(LCST)behavior,cyclichostliquids,andsmartwindows.Itisanticipatedthatmoreandmore‘smart’supramolecularmaterialsbasedonmodifiedpillar[n]areneswillbedevelopedinthisburgeoningareaofresearch.

简介：ＳＹＮＴＨＥＳＩＳ　ＡＮＤ　ＳＰＥＣＴＲＡ　ＳＴＵＤＩＥＳ　ＯＦ　ＴＲＡＮＳＩＴＩＯＮ　ＭＥＴＡＬ　ＣＯＭＰＬＥＸＥＳ　ＤＥＲＩＶＥＤ　ＦＲＯＭ　２，　４－ＤＩＮＩＴＲＯＰＨＥＮＹＬ　ＨＹＤＲＡＺＩＮＥＳＹＮＴＨＥＳＩＳＡＮＤＳＰＥＣＴＲＡＳＴＵＤＩ...

简介：许多aldoximes和ketoximes与艾尔(NO3)一起被改革到相应羰基混合物在在在房间温度的CH2Cl2的NaBr的催化数量的存在的3路9H2O。

简介：Onenewsesquiterpenecompound,namely,illihenlactoneA（1）,andonenewprenylatedC6–C3compound,illihenryioneH（2）,alongwiththreeknownsesquiterpenes（3–5）wereisolatedfromthestemsofIlliciumhenryi.Thestructuresof1and2wereelucidatedbyspectroscopicevidenceincludingNMR,HRESIMSandcirculardichroism（CD）.Compound2exhibitedaweakinhibitoryratioforbglucuronidasereleaseinducedbyplatelet-activatingfactor（PAF）inratpolymorphonuclearleukocytes（PMNs）invitro.

简介：TwoseriesofterritremBanalogues(10a-10cand18)havebeendesignedandsynthesizedfromjujubogenin5awhichwaspreparedfromjujubogeninglycosides5bobtainedfromtheleavesofZizyphusjujuba.Thestructuresofthenewcompoundswereconfirmedby1H-,13C-NMRandMSdata.Compounds10cand18showedweakinhibitoryeffectonAChEat10^-4mol/E.

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简介：Anewseriesofliquidcrystalscomprisingeightheterocyclicisoflavoneesters,7-alkanoyloxy-3-[4’-(3-methylbutyloxyphenyl)]-4H-1-benzopyran-4-onesexhibitingenantiotropicnematic(N)andsmecticC(SmC)phasesweresynthesizedandinvestigated.Themesomorphicpropertiesofallderivativeswereinvestigatedbymeansofdifferentialcalorimetryandpolarizedopticalmicroscopy.WideangleX-raydiffractiontechniquewasemployedtoinvestigatethemolecularpackingassociatedwiththeintermolecularinteractionaswellasthecorrelationbetweenthethermalbehaviourofthesecompoundswiththeiranisotropypropertieswithinamesophase.

简介：二phenylethanoidglycosides(PhGs)被高效第一次从Plantagoasiatica的天线部分孤立并且净化用乙醇acetate-n-butanol-ethanol-water的离心的分区层析(HPCPC)(0.5:0.5:0.1:1，v/v/v/v)。化合物2的化合物1和293.8mg的45.6mg的一个总数从P的n-butanol摘录的1341mg被净化。asiatica。当由electrospray电离的plantamajoside和acteoside或isoacteoside多在否定离子模式上演双人脚踏车团spectrometry(ESI-MSn)，二PhGs的结构尝试性地被识别。

简介：2-Phenyl-1,2,3-triazole-4-formylhydrazine(2)waspreparedbyhydrazinolysisofthecorrespondingester1.Reactionof2withCS2/KOHgavetheoxadiazolederivatives(3)whichvia,Mannichreactionwithdifferentdialkylaminesfurnished3-N,N-dialkylderivatives(4a-c).Also,condensationof2withappropriatearomaticacidinPOCl3yieldedoxadiazolederivatives(5a-c),orwithaldehydesandketonesaffordedhydrazones(6a-c).Cyclizationof(6a-c)withaceticanhydridegavethedesireddihydroxadiazolederivatives(7a-c).Ontheotherhand,reactionofdithiocarbazate(8)withhydrazinehydrategavethecorrespondingtriazolederivative(9)whichontreatmentwithcarboxylicacidsinrefluxingPOCl3yieldeds-triazole[3,4-b]-1,3,4-thiadiazolederivatives(10a-b).ThestructuresofalltheabovecompoundswereconfirmedbymeansofIR,1HNMR,MSandelementalanalysis.

简介：ThesynthesisofTs,T10andT12silsesquioxanecagesfromarangeofstartingmaterials:phenyl-cistetrol,1,3-divinyltetraethoxydisiloxaneandcyclopentylTresinsbyusingtetran-butylammoniumfluoride(TBAF)asthecatalystisdescribedinthispaper.Thereactionyieldsobtainedviathecurrentroutearebettercomparedtothoseviatheliteratureroutes.SomeofthecagecompoundshavebeencharacterizedbyX-raycrystallography.

简介：IntroductionFritillariahupehensisHsiaoetK.C.HsiaisaliliaceousplantgrowinginthesouthwestdistrictofHubeiProvince,China.ItsbulbshavebeenrecordedinthePharmacopoeiaofthePeople′sRepublicofChinaasoneoftheprincipaltraditionalChineseherbsnamed"Hubeibeimu"[1].

简介：Anewcerebroside,1-O-(β-D-glucopyranosyloxy)-(2S,3R,4E,8Z)-2-[(2′R)-2’-hydroxylignoceranoylamino]-4,8-tetradecene-3-diolwasisolatedfromthe60%EtOHextractoftraditionalChinesemedicalplantCyperusrotundusL.Itsstructurewasdeterminedonthebasisofspectroscopicdata.Thisnewcompoundshowedanti-proliferationeffectonvascularsmoothmusclecells(VSMCs).

简介：DensityFunetionalTheory(DFT)methodwasusedinthispapertostudyone-carbontransferfrom1.10-tetrahydroquinoxalinc,ananalogucoftetrahydrofolicaeid,tomethylamine.Thisreaetioncanbecompletedviatwopaths.Fromthecomputationresultwecanconcludethaiageneral-aeidcatalysisexistsinthisreaction.BycomputationwefindDFThasitslimitationindeseribinganewlyincorporatedstructurewithaunitcharge.

简介：DeoxybaccatinⅥ(4α,7β,9α,10β,13α-penta-acetoxy-2α-benzoyloxy-5β,20-epoxytax-11-ene)wasisolatedfromtherootsofTaxuschinensis,Rehd.var.mairei.Thestructuralassignmentsofthecompoundwerebasedontheirspectraldata,including2DNMRexperimentsandchemicalcorrelation.TheX-raycrystallographicanalysisof1-deoxybaccatinⅥprovidedunambiguouscharacterizationforthestructures.Inthestructure,thesix-memberedAringexhibitsboatconformation,theeight-memberedBringadoptsboat-chairconformation,andthesix-memberedCringexhibitsasofaconformation.