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文章名     作者     期刊名     摘要     卷     期         如果没有找到您所需要的文献，请点击 ——此处申请     共54条记录   Synthesis of Sugar Nucleotides by Application of Phosphoramidites. [作者：Gold, Henrik;van Delft, Pieter;Meeuwenoord, Nico;Codee, Jeroen D. C.;Filippov, Dmitri V.;Eggink, Gerrit;Overkleeft, Herman S.;van der Marel, Gijs A.;,期刊：Journal of Organic Chemistry, 页码：9458-9460 , 文章类型： 研究论文，,卷期：2008年73-23] A new method for the construction of pyrophosphates is reported based on the coupling of a sugar phosphate and a nucleoside phosphoramidite. The in situ formed phosphate-phosphite intermediate was subsequently oxidized ... Vilsmeier Reaction of Enaminones: Efficient Synthesis of Halogenated Pyridin-2(1H)-ones. [作者：Zhang, Rui;Zhang, Dingyuan;Guo, Yongli;Zhou, Guangyuan;Jiang, Zijiang;Dong, Dewen;,期刊：Journal of Organic Chemistry, 页码：9504-9507 , 文章类型： 研究论文，,卷期：2008年73-23] A facile and efficient one-pot synthesis of halogenated pyridin-2(1H)-ones, e.g., I, from a series of readily available enaminones under Vilsmeier conditions is described, and a mechanism involving sequential halogenatio... Synthesis of Pulvinic Derivatives via TBAF-Mediated Regioselective Opening of an Unsymmetrical Monoaromatic Pulvinic Dilactone. [作者：Habrant, Damien;Le Roux, Antoine;Poigny, Stephane;Meunier, Stephane;Wagner, Alain;Mioskowski, Charles;,期刊：Journal of Organic Chemistry, 页码：9490-9493 , 文章类型： 研究论文，,卷期：2008年73-23] The synthesis of the monoarom. pulvinic dilactone I from a tetronic acid deriv. was reported. The reaction of I with various amines was found to provide the two pulvinamides regioisomers, such as II and III {R = N[(CH2)... The role of attractive van der Waals forces in the catalysis of Michael addition by a phenyl decorated uranyl-salophen complex. [作者：Dalla Cort, Antonella;Mandolini, Luigi;Schiaffino, Luca;,期刊：Journal of Organic Chemistry, 页码：9439-9442 , 文章类型： 研究论文，,卷期：2008年73-23] The Et3N-assisted addn. of b-ketoester to MVK in chloroform is catalyzed with high turnover efficiency by the phenyl-substituted uranyl-salophen compd. but not by the parent compd. A plausible mechanism is suggested, in... The Recognition and Sensing of Anions through "Positive Allosteric Effects" Using Simple Urea-Amide Receptors. [作者：dos Santos, Cidalia M. G.;McCabe, Thomas;Watson, Graeme W.;Kruger, Paul E.;Gunnlaugsson, Thorfinnur;,期刊：Journal of Organic Chemistry, 页码：9235-9244 , 文章类型： 研究论文，,卷期：2008年73-23] The design, synthesis, and x-ray crystallog. anal. of three simple diaryl-urea based anion receptors possessing an amide moiety on one of the aryl groups, and an electron withdrawing CF3 group on the other, is described.... Macrolactamization versus Macrolactonization: Total Synthesis of FK228, the Depsipeptide Histone Deacetylase Inhibitor. [作者：Wen, Shijun;Packham, Graham;Ganesan, A.;,期刊：Journal of Organic Chemistry, 页码：9353-9361 , 文章类型： 研究论文，,卷期：2008年73-23] The cyclic depsipeptide FK228 is the only natural product histone deacetylase (HDAC) inhibitor that has advanced to clin. trials as an anticancer agent. While currently obtained by fermn., total synthesis is an attracti... A simple microscale method for determining the relative stereochemistry of statine units. [作者：Preciado, Alejandro;Williams, Philip G.;,期刊：Journal of Organic Chemistry, 页码：9228-9234 , 文章类型： 研究论文，,卷期：2008年73-23] A simple method to det. the relative stereochem. of statine amino acids (g-amino-b-hydroxyacids) by using 1H NMR spectroscopy is described. Configurational assignment of statine units within complex natural products is p... Synthesis of Conformationally Locked Versions of Puromycin Analogues. [作者：Saneyoshi, Hisao;Michel, Benoit Y.;Choi, Yongseok;Strazewski, Peter;Marquez, Victor E.;,期刊：Journal of Organic Chemistry, 页码：9435-9438 , 文章类型： 研究论文，,卷期：2008年73-23] Conformationally locked North and South versions (I and II) of puromycin analogs built on a bicyclo[3.1.0]hexane pseudosugar template were synthesized. The final assembly of the products was accomplished by the Stauding... A Linchpin Carbacyclization Approach for the Synthesis of Carbanucleosides. [作者：Leung, Leo M. H.;Gibson, Vicky;Linclau, Bruno;,期刊：Journal of Organic Chemistry, 页码：9197-9206 , 文章类型： 研究论文，,卷期：2008年73-23] A convenient synthesis of carbanucleosides, e.g. I, with both enantiomers equally accessible, is reported. The key step is a tandem linchpin cyclization process to give access to substituted carbafuranose derivs. having... Stereoselective Synthesis of a C-Linked Neuraminic Acid Disaccharide: Potential Building Block for the Synthesis of C-Analogs of Polysialic acids. [作者：Kim, Jin-Hwan;Huang, Fei;Ly, Mellisa;Linhardt, Robert J.;,期刊：Journal of Organic Chemistry, 页码：9497-9500 , 文章类型： 研究论文，,卷期：2008年73-23] C-Linked neuraminic acid disaccharide was synthesized in a diastereoselective manner from a sulfone donor and aldehyde acceptor, which was protected as a propargyl ether, through a samarium-mediated coupling reaction. T... First Synthesis of "Majoral-Type" Glycodendrimers Bearing Covalently Bound a-D-Mannopyranoside Residues onto a Hexachlocyclotriphosphazene Core. [作者：Touaibia, Mohamed;Roy, Rene;,期刊：Journal of Organic Chemistry, 页码：9292-9302 , 文章类型： 研究论文，,卷期：2008年73-23] A short and efficient strategy for the first synthesis of "Majoral-Type" multivalent glycodendrimers bearing covalently bound a-D-mannopyranosides onto a cyclotriphosphazene scaffold assembled using single-step Sonogashi... Convenient Access to Bicyclic and Tricyclic Diazenes. [作者：Taber, Douglass F.;Guo, Pengfei;,期刊：Journal of Organic Chemistry, 页码：9479-9481 , 文章类型： 研究论文，,卷期：2008年73-23] Heating the tosylhydrazone of an w-alkenyl ketone or aldehyde to reflux in toluene in the presence of K2CO3 delivered the bicyclic diazene, e.g. I. Irradn. of the diazene converted it to the cyclopropane, e.g. II. This... Conjugated Ladder-Type Heteroacenes Bearing Pyrrole and Thiophene Ring Units: Facile Synthesis and Characterization. [作者：Gao, Peng;Feng, Xinliang;Yang, Xiaoyin;Enkelmann, Volker;Baumgarten, Martin;Muellen, Klaus;,期刊：Journal of Organic Chemistry, 页码：9207-9213 , 文章类型： 研究论文，,卷期：2008年73-23] Ladder-type heteroacenes contg. pyrrole and thiophene rings, e.g. the dibenzothienocarbazole I, were facilely synthesized through appropriate precursors, e.g. II. The key step is a triflic acid induced intramol. electro... Intramolecular Pd(0)-catalyzed reactions of b-(2-iodoanilino) carboxamides: enolate arylation and nucleophilic substitution at the carboxamide group. [作者：Sole, Daniel;Serrano, Olga;,期刊：Journal of Organic Chemistry, 页码：9372-9378 , 文章类型： 研究论文，,卷期：2008年73-23] Two different reaction pathways, the enolate arylation and the acylation of the aryl halide, can be promoted by a Pd(0) catalyst starting from b-(2-iodoanilino) carboxamides. The intramol. acylation of b-(2-iodoanilino)... Studies on the Mechanism of Aldehyde Oxidase and Xanthine Oxidase. [作者：Alfaro, Joshua F.;Jones, Jeffrey P.;,期刊：Journal of Organic Chemistry, 页码：9469-9472 , 文章类型： 研究论文，,卷期：2008年73-23] DFT calcns. support a concerted mechanism for xanthine oxidase and aldehyde oxidase hydride displacement from the sp2 carbon of 6-substituted 4-quinazolinones. The variations in transition state structure show that C-O ... b-Sugar Aminoxy Peptides As Rigid Secondary Structural Scaffolds. [作者：Chandrasekhar, Srivari;Rao, Chennamaneni Lohitha;Reddy, Marepally Srinivasa;Sharma, Ganti Dattatreya;Kiran, Marelli Udaya;Naresh, Police;Chaitanya, Gunturu Krishna;Bhanuprakash, Kotamarthi;Jagadeesh, Bharatam;,期刊：Journal of Organic Chemistry, 页码：9443-9446 , 文章类型： 研究论文，,卷期：2008年73-23] Short homo-oligomers of a new building block, cis-b2,3-furanoid sugar aminooxy acid, are designed, characterized, and found to exhibit rigid ribbon-like secondary structures composed of 5/7 bifurcated intramol. hydrogen ...