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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105条记录   Synthesis of 5 '-Methylene-Phosphonate Furanonucleoside Prodrugs: Application to D-2 '-Deoxy-2 '-alpha-fluoro-2 '-beta-C-methyl Nucleosides [作者：PRADERE UGO; AMBLARD FRANCK; COATS STEVEN J; SCHINAZI RAYMOND F,期刊：Organic Letters, 页码：4426-4429 , 文章类型： Article，,卷期：2012年14-17] A new and facile synthetic pathway to metabolically stable 5'-methylene-bis(pivaloyloxymethyl)(POM)phosphonate furanonucleoside prodrugs is reported. The key step involves a Horner-Wadsworth-Emmons reaction of a tetra(pi... A Thermal Dehydrogenative Diels-Alder Reaction of Styrenes for the Concise Synthesis of Functionalized Naphthalenes [作者：KOCSIS LAURA S; BENEDETTI ERICA; BRUMMOND KAY M,期刊：Organic Letters, 页码：4430-4433 , 文章类型： Article，,卷期：2012年14-17] Functionalized naphthalenes are valuable building blocks in many important areas. A microwave-assisted, intramolecular dehydrogenative Diels-Alder reaction of styrenyl derivatives to provide cyclopenta[b]naphthalene subs... Relative Configuration of JBIR-129, a Cytotoxic 34-Membered Glycosidic Polyol Macrolide from Streptomyces sp RK74 [作者：KAWAHARA TEPPEI; IZUMIKAWA MIHO; TAKAGI MOTOKI; SHINYA KAZUO,期刊：Organic Letters, 页码：4434-4437 , 文章类型： Article，,卷期：2012年14-17] JBIR-129 was isolated as the potent cytotoxic compound, which consists of the 34-membered polyol macrolide skeleton with five sugar moieties. The relative configuration of the aglycone moiety (C7-C27 and C33-C39) was est... Chukrasones A and B: Potential Kv1.2 Potassium Channel Blockers with New Skeletons from Chukrasia tabularis [作者：LIU HONGBING; ZHANG HUE; LI PING; GAO ZHAOBING; YUE JIANMIN,期刊：Organic Letters, 页码：4438-4441 , 文章类型： Article，,卷期：2012年14-17] Two new limonoids, chukrasone A (1) incorporating a highly rearranged NB ring system and chukrasone B (2) possessing the first 16,19-dinor limonoid backbone with an extended C3 unit at C-15, were isolated from Chukrasia ... Stereoselective Synthesis of Acortatarins A and B [作者：WURST JACQUELINE M; VERANO ALYSSA L; TAN DEREK S,期刊：Organic Letters, 页码：4442-4445 , 文章类型： Article，,卷期：2012年14-17] Acortatarins A and B have been synthesized via stereoselective spirocyclizations of glycals. Mercury-mediated spirocyclization of a pyrrole monoalcohol side chain leads to acortatarin A. Glycal epoxidation and reductive ... An Efficient Total Synthesis of (-)-Huperzine A [作者：DING RUI; SUN BINGFENG; LIN GUOQIANG,期刊：Organic Letters, 页码：4446-4449 , 文章类型： Article，,卷期：2012年14-17] The total synthesis of Lycopodium alkaloid (-)-huperzine A has been accomplished in 10 steps with 17% overall yield from commercially abundant (R)-pulegone. The synthetic route features an efficient synthesis of 4 via a ... Synthesis and Characterization of Highly Water-Soluble Dendrofulleropyrrolidine Bisadducts with DNA Binding Activity [作者：LOPEZ ALEJANDRO MONTELLANO; SCAREL FRANCESCO; RUBIO CARRERO NOELIA; VAZQUEZ ESTER; MATEOALONSO AURELIO; DA ROS TATIANA; PRATO MAURIZIO,期刊：Organic Letters, 页码：4450-4453 , 文章类型： Article，,卷期：2012年14-17] The synthesis, characterization and DNA binding studies of a series of polycationic fullerene adducts are reported. Thew cationic species, exhibiting reasonably high water solubility and a heterogeneous distribution of p... Controlling the Stepwise Closing of Identical DIE Photochromic Units with Electrochemical and Optical Stimuli [作者：HERVAULT YVESMARIE; NDIAYE CHEIKH MBACKE; NOREL LUCIE; LAGROST CORINNE; RIGAUT STEPHANE,期刊：Organic Letters, 页码：4454-4457 , 文章类型： Article，,卷期：2012年14-17] The full or stepwise controlled closing of identical photochromic dithienylethene units in the same molecule was addressed with a combination of electrochemical and optical stimuli in a trimetallic carbon-rich ruthenium ... Potassium Boc-Protected Secondary Aminomethyltrifluoroborates: Synthesis and Suzuki-Miyaura Cross-Coupling Reactions [作者：MOLANDER GARY A; SHIN INJI,期刊：Organic Letters, 页码：4458-4461 , 文章类型： Article，,卷期：2012年14-17] Seven potassium Boc-protected secondary aminomethyltrifluoroborates were prepared in a standardized two-step process. The Suzuki-Miyaura cross-coupling reaction was studied with this new class of nucleophiles, and a larg... Stereoselective Preparation of beta-Aryl-beta-Boronyl Enoates and Their Copper-Catalyzed Enantioselective Conjugate Reduction [作者：DING JINYUE; LEE JACK CHANG HUNG; HALL DENNIS G,期刊：Organic Letters, 页码：4462-4465 , 文章类型： Article，,卷期：2012年14-17] A new methodology has been developed for the stereoselective preparation of beta-aryl-beta-boronyl alpha,beta-unsaturated esters via Heck coupling, and their subsequent copper(I)-catalyzed enantioselective conjugate redu... Intramolecular Direct Dehydrohalide Coupling Promoted by (KOBu)-Bu-t: Total Synthesis of Amaryllidaceae Alkaloids Anhydrolycorinone and Oxoassoanine [作者：DE SUBHADIP; GHOSH SANTANU; BHUNIA SUBHAJIT; SHEIKH JAVEED AHMAD; BISAI ALAKESH,期刊：Organic Letters, 页码：4466-4469 , 文章类型： Article，,卷期：2012年14-17] A transition-metal-free intramolecular dehydrohalide coupling via intramolecular homolytic aromatic substitution (HAS) with aryl radicals has been developed in the presence of potassium tert-butoxide and an organic molec... Validation of Diethoxyphosphonate as an Effective Agent for Charge Transfer in Anion Relay Chemistry (ARC) [作者：SOKOLSKY ALEXANDER; SMITH AMOS B III,期刊：Organic Letters, 页码：4470-4473 , 文章类型： Article，,卷期：2012年14-17] The diethoxyphosphonate group comprises an effective agent to achieve negative charge migration in Type II Anion Relay Chemistry (ARC). The process involves a [1,4]-phosphorus-Brook rearrangement that proceeds via a phos... alpha-Aminoxylation of Ketones and beta-Chloro-alpha-aminoxylation of Enones with TEMPO and Chlorocatecholborane [作者：LI YI; POULIOT MARTIN; VOGLER THOMAS; RENAUD PHILIPPE; STUDER ARMIDO,期刊：Organic Letters, 页码：4474-4477 , 文章类型： Article，,卷期：2012年14-17] Oxidation of various cyclic and acyclic ketones under mild conditions with chlorocatecholborane, a bulky pyridine base, and TEMPO to the corresponding alpha-aminoxylated products in good to excellent yields (52-99%) is d... Facile, Selective, and Regiocontrolled Synthesis of Oxazolines and Oxazoles Mediated by ZnI2 and FeCl3 [作者：SENADI GOPAL CHANDRU; HU WANPING; HSIAO JIASHING; VANDAVASI JAYA KISHORE; CHEN CHUNGYU; WANG JEHJENG,期刊：Organic Letters, 页码：4478-4481 , 文章类型： Article，,卷期：2012年14-17] An expedient method for a direct approach to the selective and regiocontrolled synthesis of 2-oxazolines and 2-oxazoles mediated by ZnI2 and FeCl3 is described. A Lewis acid promoted cyclization of acetylenic amide with ... Stereoselective Synthesis of Morpholines via Copper-Promoted Oxyamination of Alkenes [作者：SEQUEIRA FATIMA C; CHEMLER SHERRY R,期刊：Organic Letters, 页码：4482-4485 , 文章类型： Article，,卷期：2012年14-17] A new copper(II) 2-ethylhexanoate-promoted addition of an alcohol and an amine across an alkene (oxyamination) is reported. The alcohol addition is intramolecular, while coupling with the amine occurs intermolecularly. S... Phorone A and Isophorbasone A, Sesterterpenoids Isolated from the Marine Sponge Phorbas sp. [作者：WANG WEIHONG; LEE YEHEE; LEE TAE GU; MUN BORA; GIRI AWADUT G; LEE JIHYE; KIM HIYOUNG; HAHN DONGYUP; YANG INHO; CHIN JUNGWOOK; CHOI HYUKJAE; NAM SANGJIP; KANG HEONJOONG,期刊：Organic Letters, 页码：4486-4489 , 文章类型： Article，,卷期：2012年14-17] A chemical investigation of a Korean marine sponge, Phorbas sp., yielded unprecedented sesterterpenoids phorone A (1) and isophorbasone A (2) along with ansellone B (3) and phorbasone A acetate (4). Their complete struct...