Helvetica chimica acta

• 

  Año 2002, Vol. 85, Número 9

  • Mixed beta^2/beta^3-Hexapeptides and beta^2/beta^3-Nonapeptides Folding to (P)-Helices with Alternating Twelve- and Ten-Membered Hydrogen-Bonded Rings

    Magnus Rueping, J. V. Schreiber

    págs. 2577-2593

    

  • Synthesis of Oligonucleotides Carrying Anchoring Groups and Their Use in the Preparation of Oligonucleotide - Gold Conjugates

    B. G. de la Torre

    págs. 2594-2607

    

  • A New Route for Preparation of 5-Deoxy-5-(hydroxyphosphinyl)-D-mannopyranose and -L-gulopyranose Derivatives

    T. Hanaya, H. Yamamoto

    págs. 2608-2618

    

  • (2'-O-Methyl-RNA)-3'-PNA Chimeras: A New Class of Mixed Backbone Oligonucleotide Analogues with High Binding Affinity to RNA

    G. Breipohl, B. Greiner

    págs. 2619-2626

    

  • On Alkylideneamidosulfenyl Chlorides and 1-Thia-2-azoniaallene Salts

    J. C. Jochims, W. G. Wirschun, M. G. Hitzler

    págs. 2627-2635

    

  • Chemistry of N-Hydroxyguanidines: Photo-Sensitized Oxygenation and Reaction with Nitric Oxide

    H. Kabasawa

    págs. 2636-2643

    

  • Unexpected Formation of Dimethylthioketene Cycloadducts in the Reaction of 1,3-Diphenylaziridine-2,2-dicarboxylate with Cyclobutanethione Derivatives

    G. Mloston, K. Urbaniak

    págs. 2644-2656

    

  • New Dimeric Monoterpenes and Dimeric Diterpenes from the Heartwood of Chamaecyparis obtusa var. formosana

    C.-H. Chen, Y.-S. Wein, Y.-H. Kuo

    págs. 2657-2663

    

  • Leptosphaerone, a Metabolite with a Novel Skeleton from Leptosphaeria sp. IV403, an Endophytic Fungus in Artemisia annua

    C.-H. Liu, W.-X. Zou, J.-Y. Liu

    págs. 2664-2667

    

  • Reactions of Sterically Hindered `Thiocarbonyl Ylides' with 1,2-Bis(trifluoromethyl)ethene-1,2-dicarbonitrile: Isolation of a Cyclic Seven-Membered Ketene Imine

    G. Mloston, Manuel Mateo March, R. Huisgen

    págs. 2668-2685

    

  • Swimming against the Stream? A Discussion of the Bonding in d^6 and d^8 Fluoro Complexes and Its Consequences for Catalytic Applications

    A. Mezzetti

    págs. 2686-2703

    

  • Synthesis, Crystal Structure, and Enhancement of the Efficacy of Metronidazole Against Entamoeba histolytica by Complexation with Palladium(II), Platinum(II), or Copper(II)

    Simon J. Coles, Michael B. Hursthouse, N. Bharti

    págs. 2704-2712

    

  • Synthesis, Characterization, and Screening for Antiamoebic Activity of Palladium(II), Platinum(II), and Ruthenium(II) Complexes with NS-Donor Ligands

    N. Bharti

    págs. 2713-2720

    

  • Five New Medicagenic Acid Saponins from Muraltia ononidifolia

    M. Elbandy, T. Miyamoto

    págs. 2721-2728

    

  • Bromination of `endo-Benzocyclobutanorbornene': Synthesis of `endo-11,12-Dibromobenzocyclobutanorbornene': High-Temperature Bromination. Part XIV

    A. Dastan, E. Uzundumlu

    págs. 2729-2739

    

  • On the Importance of Intermediate Internal Charge Repulsion for the Synthesis of Multifunctional Pores

    B. Baumeister

    págs. 2740-2753

    

  • Preparation of High-Loading Polymer Supports by Polymerization Reaction Useful for Oligonucleotide Synthesis

    S. K. Agarwal, R. Manchanda

    págs. 2754-2762

    

  • Polymorphism vs. Desmotropy: The Cases of 3-Phenyl- and 5-Phenyl-1H-pyrazoles and 3-Phenyl-1H-indazole

    M. A. Garcia

    págs. 2763-2776

    

  • From Phosphate to Bis(methylene) Sulfone: Non-Ionic Backbone Linkers in DNA

    D. Hutter, M. O. Blaettler

    págs. 2777-2806

    

  • Synthesis, Characterization, and Crystal Structures of [Cu(ca~2en)~2]ClO~4, and [Cu(ca~2en)(PPh~3)~2]ClO~4 Complexes

    K. J. Schenk, S. Meghdadi, M. Amirnasr, S. Dehghanpour

    págs. 2807-2816

    

  • The Formation of 8-Epipodocarp-9(11)en-12-one in the Course of the Preparation of Podocarp-9(11)-en-12-one from O-Methylpodocarpane and Related Studies

    S. Borocci, R. M. Bettolo, F. Leonelli, L. M. Migneco

    págs. 2817-2826

    

  • Solid-Phase Synthesis of Polyamine Spider Toxins and Correlation with the Natural Products by HPLC-MS/MS

    S. Chesnov, N. Manov, M. Tzouros

    págs. 2827-2846

    

  • Synthesis of a Thymidine Dimer Containing a Tetrazole-2,5-diyl Internucleosidic Linkage and Its Insertion into Oligodeoxynucleotides

    V. V. Filichev

    págs. 2847-2855

    

  • Indole and Quinoline Synthesis via Intramolecular Pauson-Khand Reactions of Enamines and Allylamines

    L. Casarrubios, G. Dominguez, J. Rodriguez-Noriega

    págs. 2856-2861

    

  • Isomeric Kielcorins and Dihydroxyxanthones: Synthesis, Structure Elucidation, and Inhibitory Activities of Growth of Human Cancer Cell Lines and on the Proliferation of Human Lymphocytes In Vitro

    M. M. M. Pinto, E. P. Sousa, A. M. S. Silva

    págs. 2862-2876

    

  • Isotopically Labelled and Unlabelled beta-Peptides with Geminal Dimethyl Substitution in 2-Position of Each Residue: Synthesis and NMR Investigation in Solution and in the Solid State

    D. J. Bierbaum, T. Sifferlen, D. Seebach

    págs. 2877-2917

    

  • The Hexacarbonyl(ethyne)dicobalt Unit: An Androgen Tag

    G. Cavigiolio, D. Osella, F. Galeotti

    págs. 2918-2925

    

  • A New Stereoselective Synthesis of Acitretin (= Soriatane®, Neotigason®)

    Z. Andriamialisoa

    págs. 2926-2929

    

  • Unique Participation of Unprotected Internucleotidic Phosphodiester Residues on Unexpected Cleavage Reaction of the Si-O Bond of the Diisopropylsilandiyl Group Used as a Linker for the Solid-Phase Synthesis of 5'-Terminal Guanylated Oligodeoxynucleotides

    M. Ushioda, M. Kadokura, T. Moriguchi

    págs. 2930-2945

    

  • Chiral Space Formed by (+)-(1S)-1,1'-Binaphthalene-2,2'-diyl Phosphate: Recognition of Aliphatic L-alpha-Amino Acids

    I. Fujii, N. Hirayama

    págs. 2946-2960