Helvetica chimica acta

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  Año 1999, Vol. 82, Número 8

  • Synthesis of gluco-Configured Tetrahydroimidazopyridine- 2-phosphonate-Derived Lipids, Potential Glucosyl Transferase Inhibitors

    págs. 1137-1149

    

  • How To Stabilize or Break á-Peptidic Helices by Disulfide Bridges: Synthesis and CD Investigation of á-Peptides with Cysteine and Homocysteine Side Chains

    págs. 1150-1172

    

  • A Model for the Cobalamin-Dependent Methionine Synthase

    págs. 1173-1184

    

  • Macrocyclic Spermine Alkaloids from Verbascum: Isolation, Structure Elucidation, and Syntheses of the (E/Z)-Isomeric Pairs (S)-Verbasikrine/(S)-Isoverbasikrine and (S)-Verbamekrine/(S)-Isoverbamekrine

    págs. 1185-1194

    

  • Asymmetric Synthesis of 1,2,3,4,5,6-Hexahydro-5-hydroxy- pyrimidin-2-ones as Potential HIV-Protease Inhibitors

    págs. 1195-1201

    

  • Gold(I) and Palladium(II) Complexes Containing the Functionalized Ylides Triarylphosphonium Cyanomethylide or 2-Cyanoethylide (R~3P=CHR', R' = CN, CH~2CN)

    págs. 1202-1210

    

  • Structure-Lipophilicity Relationships of Neutral and Protonated á-Blockers. Part I. Intra- and Intermolecular Effects in Isotropic Solvent Systems

    págs. 1211-1222

    

  • Axial Configuration of Optically Active Colchicinoids and Allocolchicinoids: A Correction

    págs. 1223-1224

    

  • Dendroclefts: Optically Active Dendritic Receptors for the Selective Recognition and Chiroptical Sensing of Monosaccharide Guests

    págs. 1225-1241

    

  • Synthese und ^1H-NMR-Analyse von Triafulvalen-Vorstufen

    págs. 1242-1249

    

  • (Hydroxyalkyl)cob(III)alamins as Competitive Inhibitors in Coenzyme B~1~2-Dependent Enzymic Reactions: ^1H-NMR Structure Analysis and Kinetic Studies with Glycerol Dehydratase and Diol Dehydratase

    págs. 1250-1265

    

  • Radical Anions of Sterically Protected Polyenes: An ESR and ENDOR Study

    págs. 1266-1274

    

  • Kinetic and Molecular-Modelling Studies of Reactions of a Class-A á-Lactamase with Compounds Bearing a Methoxy Group on the á-Lactam Ring

    págs. 1274-1288

    

  • Preparation and Mechanism of Solvolysis of N-Hydroxy- à-oxobenzeneethanimidoyl Chloride, a 2-(Hydroxyimino)- 1-phenylethan-1-one Derivative: Molecular Structure of à-Oxo-oximes (= à-(Hydroxyimino) Ketones)

    págs. 1289-1301

    

  • Unexpected Products from the Reaction of 2,2,4,4-Tetramethyl cyclobutane-1,3-dione with the Makosza Reagent

    pág. 1302