个性化文献订阅>文章检索

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22条记录   Synthesis of a hydroxyethylene dipeptide isostere, a core unit of the HIV protease inhibitors ritonavir and lopinavir, and its C-5 epimer. [作者：Bhaskar, Gopishetti;Kumar, Anchoori Ravi;Ramu, Errabelli;Rao, Batchu Venkateswara;,期刊：Synthesis, 页码：3061-3064 , 文章类型： 研究论文，,卷期：2008年-19] A short synthesis of a hydroxyethylene dipeptide isostere, a core unit of the HIV protease inhibitors ritonavir and lopinavir, and its C-5 epimer is described. The above synthesis involves simple and std. procedures via... Concise asymmetric synthesis of (+)-febrifugine utilizing trans-selective intramolecular conjugate addition. [作者：Sukemoto, Satoshi;Oshige, Miyo;Sato, Masahiro;Mimura, Ken-ichiro;Nishioka, Hiromi;Abe, Hitoshi;Harayama, Takashi;Takeuchi, Yasuo;,期刊：Synthesis, 页码：3081-3087 , 文章类型： 研究论文，,卷期：2008年-19] Intramol. conjugate addn. of g-substituted (E)-a,b-unsatd. ketones with a Lewis acid (BF3譕Et2) selectively afforded trans-2,3-disubstituted piperidine derivs. Chiral substrates were synthesized by Sharpless asym. dihydr... Facile enantiospecific synthesis of dihydroconduritols E and F. [作者：Prasad, Kavirayani R.;Pawar, Amit B.;,期刊：Synthesis, 页码：3155-3159 , 文章类型： 研究论文，,卷期：2008年-19] An enantiospecific synthesis of cyclohexane-1,2,3,4-tetrols was accomplished from L-(+)-tartaric acid. Pivotal steps in the synthetic sequence include zinc-mediated Boord-type fragmentation of an acetonide, ring-closing... Synthesis of differentially protected myo- and chiro-inositols from D-xylose: stereoselectivity in intramolecular SmI2-promoted pinacol reactions. [作者：Luchetti, Giovanni;Ding, Kejia;Kornienko, Alexander;d'Alarcao, Marc;,期刊：Synthesis, 页码：3148-3154 , 文章类型： 研究论文，,卷期：2008年-19] Methods for the enantioselective conversion of D-xylose into differentially protected myo-inositol and L-chiro-inositol have been developed. The key transformation is a highly diastereoselective intramol. SmI2-promoted ... Enantio- and diastereodivergent synthetic route to multifarious cyclitols from D-xylose via ring-closing metathesis. [作者：Luchetti, Giovanni;Ding, Kejia;d'Alarcao, Marc;Kornienko, Alexander;,期刊：Synthesis, 页码：3142-3147 , 文章类型： 研究论文，,卷期：2008年-19] Short stereoselective syntheses of various cyclitols, including the derivs. of conduritol B, conduritol F, myo-inositol, and chiro-inositol have been accomplished. The key steps in the syntheses are a ring-closing metat... Facile synthesis of steroidal primary amides via palladium-catalyzed aminocarbonylation of steroidal alkenyl halides. [作者：Balogh, Janos;Maho, Sandor;Hada, Viktor;Kollar, Laszlo;Skoda-Foldes, Rita;,期刊：Synthesis, 页码：3040-3042 , 文章类型： 研究论文，,卷期：2008年-19] synthon was reported. E.g., (5a)-17-iodo-4-azaandrost-16-en-3-one I (R17 = iodo) was converted to the corresponding amide I (R17 = CONH2) with 91% yield using ammonium carbamate, Pd(OAc)2, Ph3P, and Et3N in 1,4-dioxane ...