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Partial synthesis of five new analogues of the peptido-lactone Virginiamycine Si, modified in the fifth and/or sixth position ([Xxx^J-VSi with Xxx=Ala, Asp, Asn and Lys and [Ala5,Gly6]-VSi).
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New compounds isolated from the pyrolysis of cellulose
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CYCLO(L-PROLYL-L-N-METHYLPHENYLALANYL) - CONFORMATION IN SOLUTION AND IN THE CRYSTAL.
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Structure, conformation and stereoelectronics of 9,10-annelated-1,4,5,8-tetraoxadecalines : a multidisciplinary probe
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A serendipitous synthesis of bis(α-cyano-4-nitrostyrene-β-yl) ether
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The active ester α-cyano-4-nitrostyrene-β-yl acetate is also the captodative olefin 2-acetoxy-1-cyano-1-(4-nitrophenyl)ethene : synthesis of 2,4-bis(4-nitrophenyl)pent-2-enedinitrille
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A search for phenolic protection in virginiamycin S
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Cyclization of a linear precursor of virginiamycin S1 (VS1) mediated by Woodward's reagent K
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The synthesis of Nγ-phthalyl-Nα-methyl-α, γ-diaminobutyryl congener of virginiamycin S1
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Enantiomeric quantifications of amino acids through their Na-acyl amides by gas chromatography
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A revival of the use of fully silylated amino acids and peptides as amino components in peptide synthesis, based on the utilization of trimethylsilylcyanide (tmscn) as the silylating agent
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Conformational features of four model tripeptides having Piv-Pro-MeXaa-NMe2 sequences
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Preparative separation of factors B (virginiamycins S) from commercial feed additive formulations
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Carboxymethyloximation of keto substrates : a useful grafting procedure applied on virginiamycin factors A & B
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Nuclear magnetic resonance study of the sodium salt of mutalomycin : a structural analog of lonomycin
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Isolation of factor A (virginiamycin M1) and factor B (mixture of VS1 and VS4) from a commercial feed additive formulation
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The remarkable sensitivity to acid-catalyzed peptolysis of peptide chains (endopeptolysis) having a succession of three N-alkylated amino acid residues
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BOP-CL mediated cyclization of a linear precursor of verginiamycin S. contra indication for using HOBt as racemization suppressor
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Easy cleavage of C'-terminal iminoacids from peptide acids through acidic hydrolysis
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A convenient preparation of 3H-1,3-oxazol-2-one and its N-formyl derivative
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Proton magnetic resonance study of the conformation of the pyrrolidine ring in some proline-thiohydantions
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Conformational analysis of the pyrrolidine ring of the N-methylthiohydantion of 2-methylproline
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Conformational study by 1H NMR of the (D-MePhe4)-epimer of virginiamycin S1
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NMR studies on imidines : VII. The tautomerism of mono-N-aryl substituted phthalic imidines : a 1H and 13C nuclear magnetic resonance study
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Benzylation of virginiamycin S1
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Structure of 4-(N'-pivaloyl)-D(L)-phenylalanyl-D(L)-perhydro-4H-1,4-thiazine-3-(N-methyl) carboxamide methanol monohydrate in the crystalline state
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Structure of 4-(N'-pivaloyl)-D-phenylalanyl-L-perhydro-4H-1,4-thiazine-3-(N-methyl) carboxamide in the crystalline state
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The reaction of benzyltriphenylarsonium ylides with aldehydes : a note about the mechanism of the Wittig reaction
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Alpha-cyano-beta-styrenyl esters for amide bond formation
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Experiences in Z-deprotection : simple preparations of Z-His and diz-His
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Trans benzoyl migration in 1.6-anhydro-2-azido-4-O-benzoyl-2-deoxy-β-D-glucopyranose in non-aqueous basic medium
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Selective removal of the isopropylidene group in 4-O-protected 1,6-anhydro-2, 3-O-isopropylidene-β-D-mannopyranose and the conformational impact of it
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1H NMR spectra of methyl 2,3-anhydro-α and β-D-gulopyranosides
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1H NMR study of 1,6-anhydro-β-D-glucopyranose tosylated at 2- and/or 4-position
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1H NMR study of methyl O-acetyl-α and -β-D-xylopyranosides : conformational studies and non additivity of 1H-shift increments
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On the nature of the side-products formed during the hydrogenolysis of 1,6:2,3-dianhydro-4-O-benzyl-β-D-mannopyranose
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An 1H NMR study of vinblastine
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Stereochemical aspects of proton chemical shifts : IX. Influence of O-alkyl groups on the chemical shift of the glycosidic proton in pyranoid systems
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1H-MNR study of 6-deoxy-6-fluoro-D-glucopyranose in D2O
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Conformational study on 2-oxa-bicyclo[3.3.0]octan-3-ones : configurational assignments in carbocyclic five-membered rings by 1H-NMR
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Synthesis and conformational features of a series of benzyl 4-O-(aldopentopyranosyl)-2,3-anhydro-β-D-ribopyranosides
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1H-NMR of pimaricin at 300 MHz
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Zur Synthese und 1H‐NMR‐Spektroskopie von 2,3,6‐Tridesoxyhexosen und ihren O‐Benzyl‐Glycosiden
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Solution conformation of the ionophore nonactin and its K+-complex
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Rotameric behaviour of methoxy groups in some aldopyranoses
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NMR study of the complexation of D-glucose and glucobioses with borax
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Synthesis of 2,3-O-isopropylidene pyridine nucleosides : a 300 MHz 1H N.M.R. study of the conformation of 2,3-O-isopropylidene-D-ribofuranosylamine toluene-p-sulphonate and of 1-(2' ,3' -O-isopropylidene-D-ribofuranosyl)-3-carbamoyl-pyridinium chloride in solution
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1H-NMR study of 2,3,4,6,3',4'-hexa-O-acetyl-1',6'-diacetamido-1',6'-dideoxy sucrose at 300 MHz
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Experimental data for Gauche couplings in carbohydrates
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D-ribose, D-xylose and some of their glycosylamine derivatives : a 300-MHz 1H-NMR study