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简介：Triptolide(1)gave2-9undervariousconditionsspecifiedinthetext.

简介：TEACHER:Whatisthechemicalformulaforwater?SARAH:'HIJKLMNO'!!TEACHER:Whatareyoutalkingabout?SARAH:Yesterdayyousaidit'sHtoO!

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简介：Basedontherainbow-ladderapproximationoftheDyson-Schwingerequationsandtheassumptionoftheanalytieityofthefermion-bosonvertexintheneighborhoodofzerochemicalpotential(μ=0)andneglectingtheμ-dependenceofthedressedgluonpropagator,weapplythemethodin[Phys.Rev.C71(2005)015205]ofstudyingthedressedquarkpropagatoratfinitechemicalpotentialtoprovethatthegeneralfermion-bosonvertexatfiniteμcanalsobeobtainedfromtheoneatμ=0byasimpleshiftofvariables.Usingthisresultweextendtheresultsof[Phys.Lett.B420(1998)267]tothesituationoffiniteehemicalpotentialandshowthatundertheapproximationswehavetaken,theGe11-MannOakesRennerrelationalsoholdsatfinitechemicalpotential.

简介：Hypericin是主要从属于节Euhypericum和凯勒的分类的Campylosporus的类Hypericum的工厂提取的最重要的phenanthoperylenequinones之一。普遍注意到抗病毒并且hypericin的反肿瘤性质刺激了化学合成的调查和这唯一的混合物的生合成。然而，合成策略为器官、生物的化学家是挑战性的。在这评论，在在过去的十年的全部的合成，半合成，和生合成的特定的重要进展被总结。

简介：ＴｈｅＲｏｌｅｏｆｔｈｅＣｈｅｍｉｃａｌＩｎｄｕｓｔｒｙｉｎＣｈｉｎｅｓｅＥｃｏｎｏｍｉｃＤｅｖｅｌｏｐｍｅｎｔ─ＡｎＩｎｔｅｒｖｉｅｗ　ＷｉｔｈＧｕＸｉｕｌｉａｎ，ｔｈｅＭｉｎｉｓｔｅｒｏｆＣｈｅｍｉｃａｌＩｎｄｕｓｔｒｉｅｓＧｕＸｉｕｌｉａｎ，ｂ...

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简介：FormerlyNo.713Factory,HuaxingMetallur-gical&ChemicalCo.underChinaNuclearIndustryGeneralCorporationwasestablishedin1958andputintooperationin1962.ThecorporationislocatedinShangrao,JiangxiProvinceandwasoriginallydesignedtoproducerawmaterialsformillitaryuse.Inkeepingupwiththepaceofthedevelopmentofthenationaleconomy,

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简介：Threenewditerpenoids,namedesquirolinB(1),C(2),D(3)respectively,andtwoknowncemocundseariocal(4)andtaraxerolwereisolatedfromColeusesquirolii(Levl).Thestructureelucidationwasachievedbyspectroscopicmeans

简介：试图学习MonochasmasavatieriiFranch的化学成分。化学成分被列层析与硅石胶化孤立并且反复净化了的方法，Rp-C18，SephadexLH-20并且由红外，MS和NMR识别了。结果和八混合物作为7被获得并且识别，8-dehydroboschnialactone(1)，argyol(2)，liquirtigenin(3)，-sitosterol(4)，p-hydroxycinnamic酸(5)，2-hydroxy-4-methoxybenzonic酸(6)，p-hydroxyphenylethanol(7)，protocatechuic酸(8)。结论化合物1第一次从生来的来源被获得，其它第一次从这植物被孤立。

简介：Aditerpenoid,neostellerin,wasisolatedfromtherootsofStellerachamaejasmeLtogetherwith4knowncompoundsidentifiedasβ-sitosterol,scopoletin,umbelliferoneanddaucosterol.Thestructureofneostellerin,whichwaselucidatedbyNMR,especially2DNMRanalysis,wasdifferentfromotherdaphnanetypediterpenesisolatedfromthisplant.

简介：五味子sphenanthera的茎的化学成分第一次被描述。这调查导致了新酉分的glycoside(1)的隔离，与七已知的混合物一起。1的结构被使用分光镜的技术分配，包括2DNMR系列。

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简介：Theeffectofdifferentkindsofcomonomerswithorwithoutflexiblechainonproper-tiesofcopolyesters,suchastransitiontemperature,crystallizationvelocity,crystallinityandsizeofcrystallites,isstudied.Theexperimentalresultsindicatetheobviousdiffer-enceinpropertiesbetweencomonomerswithiso-andortho-structureofphenylringandcomonomerswithflexiblechain.Theinfluenceofchemicalstructureofcomonomersonpropertiesofcopolyestersisdiscussed.

简介：ＴＨＥＣＨＥＭＩＣＡＬＳＴＲＵＣＴＵＲＥＯＦＣＥＬＡＳＴＲＩＮＥＦＲＯＭＣＥＬＡＳＴＲＵＳＦＬＡＧＥＬＬＡＲＩＳ￥ＭｉｎｇＡｎＷＡＮＧ；ＭｉｎＷＡＮＧ；ＪｕｎＬＩＵ；ＦｕＨｅｎｇＣＨＥＮ（ＤｅｐａｔｍｅｔｏｆＡｐｐｌｉｅｄＣｈｅｍｉｓｔｒｙ，Ｂｅｉｊ...

简介：ObesityandrelateddisordersareagrowingprobleminAmerica.Thisepidemicisaresultofbothchanginglifestylesandgenetic/chemicalinfluences.