简介：Twocystine-bearing1,3-bridgedcalix[4]areneswereusedasthecoatingsofthequartzcrystalmicrobalance(QCM)withgoldelectrodes.Thetwocalix[4]arenederivativeswereself-assembledontothegoldelectrodesurfacebythecovalentattachmentbetweenthedi-sulfurandgold.Thecompoundofcystine-bearingbi-phenylalanine1,3-bridgedcalix[4]arene(CPC)withlongeralkylchainhadbetterself-assembledcapacityontothefreshsurfacesofgoldelectrodethanthatofcystine-bearing1,3-bridgedcalix[4]arene(CC)withcomparablyshorteralkylchain.ThemodifiedQCMsensorswereusedtorecognizethebutylamineisomersingas.TheresultsshowedthattheQCMcoatedwithbothcompoundshadpreferentialaffinityton-butylamine,theni-butylamine,t-butylamineintherangeoflowconcentrations,indicatingthatintherecognitionprocess,thesterichindranceeffectplayedanimportantrolewhenformingcomplexwithguestmolecules.Whentheconcentrationsoftheanalyteswereincreased,thepolarityandthemagnetismofthebutylaminebecamedeterminativefactors.Thereversibilitywasimprovedgreatlyandtheequilibriumtimewasmuchshorterontheself-assembledfilmthanonthefilmobtainedbydroppingcoating.

简介：存取2-substituted-N1-carbethoxy-2,3-dihydro-4(1H)的一条灵巧、有效、新奇的途径-quinazolinones是被代替的N-carbethoxyanthranilamide的冷凝作用用p-toluenesulfonic酸在refluxing2,2,2-trifluoroethanol或hexafluoroisopropanol与烷基，aromatic或异种aromatic醛开发催化剂。

简介：利用高分辨电感耦合等离子体质谱法测定半导体级高纯氢氟酸中的痕量金属杂质，用膜去溶进样系统直接进样检测，无需前处理、快速，避免了在样品前处理时的污染问题。高分辨电感耦合等离子体质谱法可以消除多分子离子干扰，降低检出限，提高定量准确性。方法的检出限为0．09-37．07μg／L，加标回收率为92．3％-116．8％。方法简单，结果可靠，适用于高纯氢氟酸中痕量元素的快速测定。

简介：Anewsyntheticapproachto1,4,6-tri-O-benzylmyo-inositolwasdescribedonthebasisoftheregioselectivebenzylationof1,2-O-isopropylidene-4,6-di-O-benzylmyo-inositol,subsequentacidhydrolysis,phosphorylationwithtetrabenazylpyrophosphateandappropriatedeprotec-tion.

简介：一系列1-[2-(2-methoxyphenylthio)本甲基]-4-arylpiperazines衍生物基于5-HT1A/SSRI药设计策略被设计并且综合。综合混合物为他们的双5-HT1A/5-HTT活动被评估。

简介：（R）－N－乙酰四氢噻唑－2－硫酮－4－羧酸在三乙胺存在下同乙酰氯反应得到光学活性产物（R）－N－乙酰四氢噻唑－2－硫酮－4－羧酸．用半经验的量子化学方法研究反应物及产物的电子结构和反应热焓．

简介：DirectC—HfunctionalizationofquinolineN-oxideswitharylboronicacidsisachievedusingKMnO_4asthesoleandefficientoxidativesystem.Thismethodprovidesanefficientprotocoltoconstructregioselectively2-arylquinolineN-oxidesviaradicalcross-couplingreactioninmoderatedtogoodyieldsundermildconditions.

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简介：一系列2,4,5-triaryl在vitro作为ALK5禁止者代替了1H-pyrazol-3(2H)-ones,，是desigened，综合并且评估。大多数混合物在1μmol/L展出了显著ALK5抑制活动并且没在30μmol/L显示重要cytotoxicities。

简介：AsimpleandefficientcascadeMichael/cyclizationreactionof3-aminoindolin-2-oneswithenones/enalswasidentifiedforthesynthesisofpotentiallybiologicallyactive3’,4’-dihydrospiro[pyrrol-3,2’-oxindoles],usingDBUasanefficientcatalystandethyleneglycolasanenvironmentallybenignsolvent.Morediverse3’,4’-dihydrospiro[pyrrol-3,2’-oxindoles]analoglibrarieswerepreparedingoodyields(upto97%).Thestructureof3’,4’-dihydrospiro[pyrrol-3,2’-oxindoles]wasconfirmedbymassspectrometryanalysis,NMRanalysisandsinglecrystalX-raydiffraction.Themainadvantagesofthismethodincludetheavailabilityofstartingmaterials,simpleexperimentaloperation,shortreactiontime,aswellashighyieldsobserved.

简介：有结构N-(3-arylpropyl)-9,10-dihydro-9-oxoacridine-4-carboxamides(2029)的分子的一个新奇的类被用阶段药设计软件为有势力MDR颠倒活动产生pharmacophore设计。设计分子被一条新奇合成线路综合并且由标准Hoechst33342试金方法在P-glycoprotein(P-gp)的运输活动为他们的禁止的效果评估了。基于屏蔽的十标题混合物的pIC50价值，三混合物作为与用作标准的Verapamil相比展出了更好的活动。

简介：ThecomplexK3H4GeW9V3O40·8H2OcrystallizedinamonocliiniesystemwithspacegroupP2,Mr=2784.67,a=11.099（3）,b=16.452（4）,c=13.534（4）,β=108.14°,Z=2,V=2348.493,F（000）:2456,μ=239.7cm-1,De=3.932g/cm3.ThefinalR=0.083for4528non-zeroreflexions.ThestructureofanionsGeW9V3O40andGeW9O34belongstoA--type.

简介：利用水热法首次合成了具有两种配位环境Cd原子的新型杂多蓝化合物[NH3（CH2）2NH3]5[Cd（H2O）][CdMo12^vO30（HPO4）6（H2PO4）2]·5H2O．通过元素分析、ICP、TG和X射线单晶衍射确定了其组成，使用IR和EPR进行了结构表征．通过N2吸附脱附测定了比表面积和孔径，为催化研究提供了基础数据．结果表明：该晶体为三斜晶系，P-1，空间群；晶胞参数a=1．2002（2）nm，b=1．4651（3）nm，c=2．1192（4）nm，V=3．5642（12）nm^3，p=83．01（3）°，Z=2，F（000）=2932，R1=0．0300，wR2=0．0716．

简介：Thetitlecomplex[NH_3CH_2CH(NH_2)CH_3]_2[M(Ⅵ)O_2(OC_6H_4O)_2](M=Mo_(0.6)W_(0.4))wassynthesizedviaasimplesolution-phasechemicalroute.ThedeterminationofsinglecrystalX-raydiffractionrevealedthatthetitlecompoundiscrystallizedinamonoclinicsystemwithP2(1)/nspacegroup,a=1.0913(10)nm,b=1.0442(10)nm,c=1.8842(19)nm,α=90°,β=96.530(17)°,γ=90°,Z=4,andV=2.133(4)nm3.Themononuclearanionicunit[M(Ⅵ)O2(OC6H4O)2]2-displayschiralpseudo-octahedral[MO_6]coordinationgeometryandislinkedbychiralcationsviahydrogenbondandπ…πstackinginteraction.Thetransmissionelectronmicroscopyimagesshowthatthetitlecomplexiscomprisedofnano-particleswithdiametersrangingfrom20to50nm.TheNMRstudyshowsthe1Hdownfieldchemicalshiftsof[NH_3CHaHbCH(NH_2)CH_3]+cationsinthetitlecomplexwhenitismixedwithadenosine-triphosphate(ATP),andthechemicalshiftdifferencebetweenHaandHbisincreasedgreatly,andmostofthecatecholateligandsdissociatefromthecentralmetalatoms.TheDNAcleavageactivityexperimentrevealsthatDNAcleavagepromotedbythetitlecomplexislowerthanthatbyNa_2MoO_4whichpossessesantitumorpro-perty,buthigherthanthatbyNa_2WO_4.

简介：[Co3(1,2-S2C6H4)3(PPh3)3][CoBr3(DMF)].sol(1,sol=CHCl3,O(C2H5)2,H2O)wasobtainedfromthereactionofCoBr(PPh3)3withNa2(S2C6H4)inchloroform.TheCo3coreinthecationof1exhibitsametal-metalbondedisoscelestriangle,inwhichthetwolongerCo-CobondsarebothbridgedbyS2C6H4ligandsontwosidesofthetriangleplanerespectively,whilethebottomshortCo-CobondisbridgedbythethirdbidentateS2C6H4ligand.Aseriesofpolynu-clearcobaltclustercompoundswithphosphine,thiolateand/orsulphurligandswerepreparedbylowoxidationstateCo+withthiolatesinorganicsolvents.Thesetri-,tetra-,hexa-,heptanuclearclustercompounds1-8withvarioustypesofcrystalstructurescanbeviewedasthecondensedpolynuclearcobaltcomplexesthatthecobaltatomframeworkswithsulphurbridgedwerebuiltthroughthesmalltriangularunitsof[Co3S3nL3](n=1,2)withorwithout[CoL](L=PR3,Br,Cl,5-C5H5)fragments.

简介：一系列5-phenyl-3H-spiro[indoline-3,2-[1,3,4]thiadiazol]-2-one类似物被综合并且他们的Bcl-2蛋白质禁止的活动被学习。铅混合物原来用荧光被识别基于极化的竞争有约束力的试金。在调查的10混合物之中，1k分别地显示出好有约束力的亲密关系到Bcl-xL和Mcl-1，与8.9mol/L和3.4mol/L的抑制常数。当复合1c完成了紧密的有约束力的亲密关系到Bcl-xL时(Ki=0.16mol/L)，有潜力是新铅混合物。

简介：采用氢氟酸微波消解法前处理氧化锆材料，使用氢氟酸进样系统，不需要赶酸直接测定GBW06602氧化锆标准样品中的多元素含量，根据样品情况确定了最佳分析条件和最佳分析谱线。实验结果表明，测定元素线性关系及重复性良好，定量准确，可同时测定氧化锆中的多种金属元素，该方法检出限低，精密度高，分析结果与标准值相吻合，完全满足氧化锆中多元素杂质含量的工业分析要求。

简介：Poly(4-vinylpyridine)supportednanoparticleofcopper(Ⅰ)iodideisreportedasagreenandrecyclablecatalystfortheregioselectivesynthesisof1,4-disubstituted-1H-1,2,3-triazolesfrombenzylhalides,sodiumazideandterminalalkynesinwater.Thiscatalystcanberecoveredbysimplefiltrationandrecycledupto8consecutiverunswithoutanylossofitsefficiency.

简介：6/3-(4-Chlorophenyl)-s-triazolo[3,4-b][1,3,4]thiadiazoles(2a-e)and(5a-e)weresynthesizedrespectivelybyintermolecularcyclizationof5-aryl/4-chlorophenyl-4-amino-3-mercapto-1,2,4-triazoles(1a-e)and(4)with4-chlorobenzoicacid/arylacids,whichwerecondensedwithpiperazineunderphasetransfercatalystTBABtoyieldthecorrespondingfreebasesofmonopiperazinederivativesandfollowedtoformwater-solublesalts(3a-e)and(6a-e)withhydrochloricacidingoodyields.Theinvitrobiologicalresultsshowedthatpiperazinegroupconjugatedwiththeabovefusedheterocyclesplayedanimportantroleinantibacterialactivity.ThestructuresofnovelcompoundswereconfirmedbyIR,1HNMR,MSandelementalanalysis.