Works matching IS 0018019X AND DT 1990 AND VI 73 AND IP 4
Results: 35
Photochemical reactions. 152nd Communication. Photochemistry of acylsilanes; photolysis and thermolysis of cyclopropyl silyl ketones.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 922, doi. 10.1002/hlca.19900730420
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Totalsynthese von natülichem α-Tocopherol. 5. Mitteilung. Asymmetrische Alkylierung und asymmetrische Epoxidierung als Methoden zur Einführung der ( R)-Konfiguration an C(2) des Chroman-Systems.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 1068, doi. 10.1002/hlca.19900730431
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Tricyclic Pyridine Derivatives with High Affinity to the Central Benzodiazepine Receptor.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 763, doi. 10.1002/hlca.19900730402
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Stereoselective Coordination to Chiral Matrices. Cobalt(III). Chemistry of Simple Facially Coordinating Chiral Triamines.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 874, doi. 10.1002/hlca.19900730413
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New Spirostaphylotrichins from the Mutant Strain P 649 of Staphylotrichum coccosporum: The Biogenetic Interrelationship of the Known Spirostaphylotrichins.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 975, doi. 10.1002/hlca.19900730424
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Mitteilungen.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 1148, doi. 10.1002/hlca.19900730435
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Reaction of 3-Amino-2 H-azirines with 2-Amino-4,6-dinitrophenol (Picramic Acid): Synthesis of Quinazoline- and 1,3-Benzoxazole Derivatives.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 959, doi. 10.1002/hlca.19900730423
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Coralloidolide F, the First Example of a 2,6-Cyclized Cembranolide: Isolation from the Mediterranean Alcyonacean Coral Alcyonium coralloides.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 804, doi. 10.1002/hlca.19900730406
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The synthesis of DL-1-(hexadecanoyloxy)methyl- and 1- O-hexadecanoyl-inositols as potential inhibitors of phospholipase C.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 1037, doi. 10.1002/hlca.19900730428
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Pterin chemistry. Part 89. Natural primapterin belongs to the L-series of 7-(polyhydroxypropyl)pterins.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 1064, doi. 10.1002/hlca.19900730430
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Masthead.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. fmi, doi. 10.1002/hlca.19900730401
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- Article
Technical Procedures for the Syntheses of Carotenoids and Related Compounds from 6-Oxo-isophorone: Syntheses of (3 R,3′ R)-Zeaxanthin. Part II.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 868, doi. 10.1002/hlca.19900730412
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2 H-benzimidazoles. Part 5. Convenient synthons for tricyclic heterocycles.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 902, doi. 10.1002/hlca.19900730417
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A New Combined Purification/Phosphorylation Procedure for Oligodeoxynucleotides.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 1139, doi. 10.1002/hlca.19900730434
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Synthese von 2,4-Diamino-thieno[2,3- d]pyrimidin-Derivaten.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 797, doi. 10.1002/hlca.19900730405
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A Short Synthesis of (±)-Muscone.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 896, doi. 10.1002/hlca.19900730416
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Tetrahydrolipstatin: Thermal and Hydrolytic Degradation.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 1022, doi. 10.1002/hlca.19900730427
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Konstitutionsisomerie in Polykondensaten. Teil VI. Synthese und Eigenschaften von völlig geordneten und ungeordneten Bipolyamiden aus cis-2,6-Dimethylpiperazin und 1,2,5-Thiadiazol-3,4-dicarbonyl-dichlorid.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 839, doi. 10.1002/hlca.19900730409
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Technical Procedures for the Syntheses of Carotenoids and Related Compounds from 6-Oxo-isophorone: Syntheses of (3 R,3′ R)-Zeaxanthin. Part I.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 861, doi. 10.1002/hlca.19900730411
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Analogues of Sialic Acids as Potential Sialidase Inhibitors Synthesis of 2-C-Hydroxymethyl Derivatives of N-Acetyl-6-amino-2,6-dideoxy-neuraminic Acid.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 940, doi. 10.1002/hlca.19900730422
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Die Synthese des Labdanditerpenes Erigerol und analoger Verbindungen.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 1108, doi. 10.1002/hlca.19900730433
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Ein neuer synthetischer Zugang zu Ubichinonen.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 790, doi. 10.1002/hlca.19900730404
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Photorearrangement of 4,4-Dimethylcyclohex-2-enones with Alkyl or Fluoro Substituents at C(5) and C(6): In Search of the Mechanism.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 890, doi. 10.1002/hlca.19900730415
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Synthese der (3 S,4 R,3′ S,4′ R)- und (3 S,4 S,3′ S,4′ S)Crustaxanthine sowie weiterer Verbindungen mit 3,4-Dihydroxy-β-Endgruppen.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 1002, doi. 10.1002/hlca.19900730426
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Thermal 1,6-Electrocyclization Reactions of Acceptor-Substituted 2,3-Divinyl-1 H-indoles Yielding Functionalized Carbazoles.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 827, doi. 10.1002/hlca.19900730408
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Structure and Synthesis of (±)-Caudoxirene, a New Spermatozoid-Releasing and -Attracting Pheromone from the Marine Brown Alga Perithalia caudata (Phaeophyceae, Sporochnales). Part V.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 916, doi. 10.1002/hlca.19900730419
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Synthesis and Circular Dichroism of Optically Pure (±)-(1 S,2 S,5 S)-5-Methoxy-3,4,6,7-tetramethylidenebicyclo[3.2.1]oct-2-yl Derivatives. Baker's Yeast Reduction of 4-Methoxy-5,6,7,8-tetramethylidenebicyclo[2.2.2]octan-2-one.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 985, doi. 10.1002/hlca.19900730425
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Synthesis of rel-(3 RS,3a SR,7a SR)-3-(4-Chlorophenyl)-3a,4,5,6,7,7a-hexahydro-1-methylindolin-6-one, the Main Metabolite of the Analgesic Ro 15-8081: A Potent Amine-Uptake Inhibitor.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 932, doi. 10.1002/hlca.19900730421
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Eine neue Methode zur stereochemischen Analyse offenkettiger terpenoider Carbonyl-Verbindungen,.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 1087, doi. 10.1002/hlca.19900730432
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Chromatographische Trennung und quantitative Bestimmung aller acht Stereoisomeren von α-Tocopherol.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 782, doi. 10.1002/hlca.19900730403
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Synthese von einigen 2 H-Pyran-2-on-Derivaten.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 883, doi. 10.1002/hlca.19900730414
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Photocycloaddition of Cyclohex-2-enones to Tetramethoxyethylene: Formation of 2,2,3,3-Tetramethoxy-1-oxaspiro[3.5]non-5-enes.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 856, doi. 10.1002/hlca.19900730410
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Pteridine. Teil XCIV. Synthese und Eigenschaften von 5,6-Dihydro-6-(1,2,3-trihydroxypropyl)pteridinen: Kovalente intramolekulare Addukte.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 808, doi. 10.1002/hlca.19900730407
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The Syntheses of Purine and Pyrimidine Secoribo-nucleosides: Acyclo-uridine Derivative of Cyclophosphamide.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 912, doi. 10.1002/hlca.19900730418
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Pterin chemistry. Part 88. A simple synthesis of 5-Deoxy- L-[5-<sup>2</sup>H<sub>1</sub>]arabinose and L-[3′-2H<sub>1</sub>] biopterin.
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- Helvetica Chimica Acta, 1990, v. 73, n. 4, p. 1058, doi. 10.1002/hlca.19900730429
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