Works matching IS 0018019X AND DT 1991 AND VI 74 AND IP 4

Results: 23

Cycloviolaxanthin (= (3 S,5 R,6 R,3′ S,5′ R,6′ R)-3,6:3′,6′-Diepoxy-5,6,5′,6′-tetrahydro-β,β-carotin-5,5′-diol), ein neues Carotinoid aus Paprika ( Capsicum annuum).

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 819, doi. 10.1002/hlca.19910740416

By:

Deli, Jóseph;
Mólnar, Péter;
Tóth, Gyula;
Baumeler, Andreas;
Eugster, Conrad Hans

Publication type:

Article

Masthead.

Published in:: Helvetica Chimica Acta, 1991, v. 74, n. 4, p. fmi, doi. 10.1002/hlca.19910740401
Publication type:: Article

Synthèse des (−)-(6 R)-et(+)-(6 S)-tétrahydro-6-[( Z)-pent-2-ényl]-2 H-pyran-2-one, lactones de Jasminum grandiflorum L. et de Polianthes tuberosa L.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 787, doi. 10.1002/hlca.19910740412

By:

Blaser, Florian;
Deschenaux, Pierre-François;
Kallimopoulos, Thomas;
Jacot-Guillarmod, André

Publication type:

Article

Mitteilungen.

Published in:: Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 905, doi. 10.1002/hlca.19910740423
Publication type:: Article

Syntheses and Crystal Structures of 4,5-Dihydro-2-(2′-hydroxyphenyl)oxazole-Containing Metal Complexes.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 717, doi. 10.1002/hlca.19910740405

By:

Bolm, Carsten;
Weickhardt, Konrad;
Zehnder, Margareta;
Glasmacher, Dorothea

Publication type:

Article

Physovenines: Efficient Synthesis of (−)- and (+)-Physovenine and Synthesis of Carbarnate Analogues of (−)-Physovenine. Anticholinesterase Activity and Analgesic Properties of Optically Active Physovenines.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 761, doi. 10.1002/hlca.19910740409

By:

Yu, Qian-sheng;
Liu, Chi;
Brzostowska, Margareth;
Chrisey, Linda;
Brossi, Arnold;
Greig, Nigel H.;
Atack, John R.;
Soncrant, Timothy T.;
Rapoport, Stanley I.;
Radunz, Hans-Eckart

Publication type:

Article

Conformational Analysis of Marine Polyhalogenated β-Chamigrenes Through Temperature-Dependent NMR Spectra.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 774, doi. 10.1002/hlca.19910740411

By:

Guella, Graziano;
Chiasera, Giuseppe;
Mancini, Ines;
Pietra, Francesco

Publication type:

Article

Errata.

Published in:: Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 904, doi. 10.1002/hlca.19910740422
Publication type:: Article

Coenzyme F430 from Methanogenic Bacteria: Complete Assignment of Configuration Based on an X-Ray Analysis of 12,13-Diepi-F430 Pentamethyl Ester and on NMR Spectroscopy.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 697, doi. 10.1002/hlca.19910740404

By:

Färber, Gerald;
Keller, Walter;
Kratky, Christoph;
Jaun, Berhard;
Pfaltz, Andreas;
Spinner, Christoh;
Kobelt, André;
Eschenmoser, Albert

Publication type:

Article

Studies Directed Towards the Biosynthesis of the C7N Unit of Rifamycin B: A New Synthesis of Quinic Acid from Shikimic Acid.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 807, doi. 10.1002/hlca.19910740415

By:

Meier, Rose-Marie;
Tamm, Christoph

Publication type:

Article

1-(2′-Deoxy-β- D-xylofuranosyl)thymine Building Blocks for Solid-Phase Synthesis and Properties of Oligo(2′-Deoxyxylonucleotides).

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 748, doi. 10.1002/hlca.19910740408

By:

Rosemeyer, Helmut;
Seela, Frank

Publication type:

Article

Nucleotides. Part XXXV. Synthesis of 3′-deoxyadenylyl-(2′-5′)-3′-deoxyadenyIyl-(2′-ω)-9-(ω-hydroxyalkyl)adenines.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 887, doi. 10.1002/hlca.19910740419

By:

Mikhailov, Sergey N.;
Charubala, Ramamurthy;
Pfleiderer, Wolfgang

Publication type:

Article

Asymmetric Synthesis of Diazepino-β-lactams by [2 + 2] Cycloaddition of an ' Evans- Sjogven' Ketene with 1 H-1,2-Diazepines.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 767, doi. 10.1002/hlca.19910740410

By:

Muller, Marc;
Bur, Daniel;
Tschamber, Théophile;
Streith, Jacques

Publication type:

Article

Synthesis of 1 H,2,3-Triazoles from 2-Substituted Cyclododecanones and Phenyl Azide.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 899, doi. 10.1002/hlca.19910740421

By:

Ognyanov, Vassil I.;
Hesse, Manfred

Publication type:

Article

α- D-Glycosyl-Substituted α,α- D-Trehaloses with (1 → 4)-Linkage: Syntheses and NMR Investigations.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 682, doi. 10.1002/hlca.19910740403

By:

Wessel, Hans Peter;
Englert, Gerhard;
Stangier, Peter

Publication type:

Article

Versatile Stereoselective Synthesis of Completely Protected Trifunctional α-Methylated α-Amino Acids Starting from Alanine.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 800, doi. 10.1002/hlca.19910740414

By:

Altmann, Eva;
Nebel, Kurt;
Mutter, Manfred

Publication type:

Article

Sequence-Specific Spin Labeling of Oligothymidylates by Phosphotriester Chemistry.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 739, doi. 10.1002/hlca.19910740407

By:

Duh, Jauh-Lin;
Bobst, Albert M.

Publication type:

Article

Condensation of 2,3-Di(methylidene)-7-oxabicyclo[2.2.1]heptane Derivatives into Dicarbonyl[η3:η3-octa-2,6-diene-1,8-diyl]iron Complexes with Nonacarbonyldiiron. Crystal Structure of (1 RS,2 RS,3 RS,4 SR,5 RS,6 SR,1′ RS,2′ RS,3′ RS,4′ SR,5′ RS,6′ SR)-Dicarbonyl-{(2,3, C-η:2′,3′, C-η)-2,2′-ethylene-5,5′,6,6′-tetrakis[(methanesulfonyloxy)-methyl]-3,3′-di(methylidene)-bis[7-oxabicyclo[2.2.1]hept-2-yl]}iron

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 878, doi. 10.1002/hlca.19910740418

By:

Araki, Shuki;
Vogel, Pierre;
Blanc, Eric;
Chapuis, Gervais;
Schenk, Kurt

Publication type:

Article

Nucleotides. Part XXXVI. Syntheses and biological characterization of phosphorothioate analogues of (3′-5′)adenylate trimer.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 892, doi. 10.1002/hlca.19910740420

By:

Chambala, Ramamurthy;
Sobol, Robert W.;
Kon, Ning;
Suhadolnik, Robert J.;
Pfleiderer, Wolfgang

Publication type:

Article

Photo-Cleavable Cryptands: Synthesis and Structure.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 671, doi. 10.1002/hlca.19910740402

By:

Warmutha, Ralf;
Grell, Ernst;
Lehn, Jean-Marie;
Bats, Jan W.;
Quinkert, Gerhard

Publication type:

Article

Novel Antifungal Tetracyclic Compounds from Bauhinia rufescens L AM.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 791, doi. 10.1002/hlca.19910740413

By:

Maillard, Marc P.;
Recio-Iglesias, Maria-Carmen;
Saadou, Mahamane;
Stoeckli-Evans, Helen;
Hostettmann, Kurt

Publication type:

Article

Diels- Alder Reactions of (1 H-Indol-3-yl)-enacetamides and -endiacetamides: A Selective Access to Acetylamino-Functionalized [ b]Annelated Indoles and Carbazoles.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 727, doi. 10.1002/hlca.19910740406

By:

Pindur, Ulf;
Otto, Christian;
Molinier, Michel;
Massa, Werner

Publication type:

Article

Double-Diamond Inclusion Compounds of 2,6-Dimethylydeneadamantane-1,3,5,7-tetracarboxylic Acid.

Published in:

Helvetica Chimica Acta, 1991, v. 74, n. 4, p. 825, doi. 10.1002/hlca.19910740417

By:

Ermer, Otto;
Lindenberg, Lorenz

Publication type:

Article