0000000001298912

AUTHOR

B. Rzeszotarska

showing 23 related works from this author

Synthesis of peptides with α,β‐dehydroamino acids, V. coupling experiments with C‐terminal dehydrophenylalanine and dehydroalanine residues

1986

N-Protected model dipeptides of C-terminal (Z)-ΔPhe and ΔAla couple with glycine esters after activation with either diphenyl phosphorazidate (DPPA), N-cyclohexyl-N′-[2-(N-methylmorpholinio)ethyl]carbodiimide p-toluenesulfonate (WSC), N,N′-dicyclohexylcarbodiimide + 1-hydroxybenzotriazole (DCC + HOBt), or the mixed anhydride (MA) with isobutyl chlorocarbonate to give in good or mostly moderate yields the (Z)-ΔPhe-containing tripeptides 1 – 9 and ΔAla-containing tripeptides 11 – 19, respectively. In the MA and DPPA methods, further acylation products 20a – d are formed to a great extent, expecially during the ΔAla peptide syntheses. (E)-TFA-Gly-ΔPhe and Gly-OtBu, irrespective of the activati…

chemistry.chemical_classificationDouble bondStereochemistryChemistryOrganic ChemistryPeptideTripeptideAdductAcylationchemistry.chemical_compoundDehydroalaninePhysical and Theoretical ChemistryActivation methodCarbodiimideLiebigs Annalen der Chemie
researchProduct

SYNTHESIS OFt-BUTOXYCARBONYL AND BENZYLOXYCARBONYL AMINO ACID AMIDES

1984

chemistry.chemical_classificationchemistryStereochemistryOrganic ChemistryAmino acidOrganic Preparations and Procedures International
researchProduct

Synthesis of Peptides with α,β-Dehydroamino Acids, II. Synthesis oftert-Butyloxycarbonyldipeptides of Dehydroalanine and Dehydrophenylalanine

1985

Condensation of amides of Boc-amino acids3) with pyruvic acid leads to Boc-dipeptides 1 – 3 of dehydroalanine and 1-Boc-5-alkyl-2-methyl-4-oxo-2-imidazolidinecarboxylic acids 8 – 10. The amides, however, do not condense with phenylpyruvic acid. Boc-dipeptides of dehydroalanine (1 – 3) and dehydrophenylalanine (4 – 7) are synthesized using (Boc)2O and dehydrodipeptides with a free unmasked N-terminal amino group. Synthese von Peptiden mit α,β-Dehydroaminosauren, II1). – Synthese von tert-Butyloxycarbonyldipeptiden von Dehydroalanin und Dehydrophenylalanin2) Die Kondensation von Boc-Aminosaureamiden3) mit Brenztraubensaure fuhrt zu Boc-Dipeptiden 1 – 3 des Dehydroalanins und 1-Boc-5-alkyl-2-m…

chemistry.chemical_compoundDipeptidechemistryDehydroalanineStereochemistryAmideOrganic ChemistryPhenylpyruvic acidPyruvic acidNuclear magnetic resonance spectroscopyPhysical and Theoretical ChemistryLiebigs Annalen der Chemie
researchProduct

Conformational properties of N′,N′-dimethylamides of N-acetyldehydroalanine and N-acetyl-(Z)-dehydrophenylalanine

2001

Conformational preferences of Ac-deltaAla-NMe2 and Ac-(Z)-deltaPhe-NMe2 were studied and compared with those of their monomethyl counterparts as well as with those of their saturated analogues. X-Ray data and energy calculations revealed a highly conservative conformation of the dehydro dimethylamides, which is located in a high-energy region of the Ramachandran map.

N¢-dimethylamidesaalanine and phenylalaninederivativesN¢b-dehydroamino acidsGeneral Biochemistry Genetics and Molecular BiologyX-ray crystallographytheoretical calculations
researchProduct

CCDC 201795: Experimental Crystal Structure Determination

2003

Related Article: D.Siodlak, M.A.Broda, B.Rzeszotarska, I.Dybala, A.E.Koziol|2003|J.Pept.Sci.|9|64|doi:10.1002/psc.433

Space GroupCrystallographyCrystal SystemN-Acetyl-DL-phenylalanine N'N'-dimethylamideCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 192134: Experimental Crystal Structure Determination

2003

Related Article: B.Rzeszotarska, D.Siodlak, M.A.Broda, I.Dybala, A.E.Koziol|2002|J.Pept.Res.|59|79|doi:10.1034/j.1399-3011.2002.10951.x

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersN-Acetyl-L-alanine N'-dimethylamideExperimental 3D Coordinates
researchProduct

CCDC 201796: Experimental Crystal Structure Determination

2003

Related Article: D.Siodlak, M.A.Broda, B.Rzeszotarska, I.Dybala, A.E.Koziol|2003|J.Pept.Sci.|9|64|doi:10.1002/psc.433

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersN-Acetyl-L-phenylalanine N'N'-dimethylamideExperimental 3D Coordinates
researchProduct

CCDC 275068: Experimental Crystal Structure Determination

2007

Related Article: M.A.Broda, E.M.Ciszak, A.E.Koziol, G.Pietrzynski, B.Rzeszotarska|2006|J.Pept.Sci.|12|538|doi:10.1002/psc.763

Space GroupCrystallographyCrystal SystemN-Acetyl-L-prolyl-alphabeta-(E)-dehydrobutyridine methylamideCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 631807: Experimental Crystal Structure Determination

2008

Related Article: A.Kusakiewicz-Dawid, E.Masiukiewicz, B.Rzeszotarska, I.Dybala, A.E.Koziol, M.A.Broda|2007|Chem.Pharm.Bull.|55|747|doi:10.1248/cpb.55.747

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersEthyl 5-(acetylamino)-1H-pyrazole-4-carboxylateExperimental 3D Coordinates
researchProduct

CCDC 620768: Experimental Crystal Structure Determination

2006

Related Article: A.E.Koziol, T.Lis, E.Kolodziejczyk, A.Kusakiewicz-Dawid, B.Rzeszotarska|2006|Acta Crystallogr.,Sect.E:Struct.Rep.Online|62|o3664|doi:10.1107/S1600536806029515

Space GroupCrystallographyCrystal SystemCrystal StructureEthyl 1-acetyl-3-amino-1H-pyrazole-4-carboxylateCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 156947: Experimental Crystal Structure Determination

2004

Related Article: A.E.Koziol, B.Szady, E.Masiukiewicz, B.Rzeszotarska, M.A.Broda|2001|Chem.Pharm.Bull.|49|418|doi:10.1248/cpb.49.418

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters(R)-t-Butyl 2-((t-butoxycarbonyl)amino)-3-(tritylsulfanyl)propanoateExperimental 3D Coordinates
researchProduct

CCDC 611080: Experimental Crystal Structure Determination

2007

Related Article: D.Siodlak, A.Macedowska-Capiga, K.Ejsmont, J.Zaleski, B.Rzeszotarska|2007|Z.Kristallogr.|222|297|doi:10.1524/zkri.2007.222.6.297

Space GroupCrystallographyCrystal SystemCrystal StructureN-Acetyl-N-methyl-alphabeta-dehydroalanine N'-methylamideCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 192133: Experimental Crystal Structure Determination

2003

Related Article: B.Rzeszotarska, D.Siodlak, M.A.Broda, I.Dybala, A.E.Koziol|2002|J.Pept.Res.|59|79|doi:10.1034/j.1399-3011.2002.10951.x

N-Acetyl-DL-alanine N'-dimethylamideSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 631805: Experimental Crystal Structure Determination

2008

Related Article: A.Kusakiewicz-Dawid, E.Masiukiewicz, B.Rzeszotarska, I.Dybala, A.E.Koziol, M.A.Broda|2007|Chem.Pharm.Bull.|55|747|doi:10.1248/cpb.55.747

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersEthyl 3-amino-1H-pyrazole-4-carboxylateExperimental 3D Coordinates
researchProduct

CCDC 275069: Experimental Crystal Structure Determination

2007

Related Article: M.A.Broda, E.M.Ciszak, A.E.Koziol, G.Pietrzynski, B.Rzeszotarska|2006|J.Pept.Sci.|12|538|doi:10.1002/psc.763

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersacetyl-L-prolyl-alphabeta-(Z)-dehydrobutyridine methylamideExperimental 3D Coordinates
researchProduct

CCDC 611081: Experimental Crystal Structure Determination

2007

Related Article: D.Siodlak, A.Macedowska-Capiga, K.Ejsmont, J.Zaleski, B.Rzeszotarska|2007|Z.Kristallogr.|222|297|doi:10.1524/zkri.2007.222.6.297

Space GroupCrystallographyCrystal SystemN-Acetyl-N-methyl-D-alanine N'-methylamideCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 202882: Experimental Crystal Structure Determination

2004

Related Article: D.Siodlak, M.A.Broda, B.Rzeszotarska, E.Kolodziejczyk, A.E.Koziol|2004|Z.Kristallogr.|219|231|doi:10.1524/zkri.219.4.231.30447

Space GroupCrystallographyN-Acetyl-DL-butyrine dimethylamideCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 611082: Experimental Crystal Structure Determination

2007

Related Article: D.Siodlak, A.Macedowska-Capiga, K.Ejsmont, J.Zaleski, B.Rzeszotarska|2007|Z.Kristallogr.|222|297|doi:10.1524/zkri.2007.222.6.297

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersN-Acetyl-N-methyl-L-alanine N'-methylamideExperimental 3D Coordinates
researchProduct

CCDC 613211: Experimental Crystal Structure Determination

2008

Related Article: E.Masiukiewicz, B.Rzeszotarska, I.Wawrzycka-Gorczyca, E.Kolodziejczyk|2007|Synth.Commun.|37|1917|doi:10.1080/00397910701341423

Space GroupCrystallography5-(Glycylamino)-1-methyl-1H-(124)triazole-3-carboxylic acid trihydrateCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 631806: Experimental Crystal Structure Determination

2008

Related Article: A.Kusakiewicz-Dawid, E.Masiukiewicz, B.Rzeszotarska, I.Dybala, A.E.Koziol, M.A.Broda|2007|Chem.Pharm.Bull.|55|747|doi:10.1248/cpb.55.747

Space GroupCrystallographyCrystal SystemEthyl 1-acetyl-5-amino-1H-pyrazole-4-carboxylateCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 192132: Experimental Crystal Structure Determination

2003

Related Article: B.Rzeszotarska, D.Siodlak, M.A.Broda, I.Dybala, A.E.Koziol|2002|J.Pept.Res.|59|79|doi:10.1034/j.1399-3011.2002.10951.x

Space GroupCrystallographyN-acetyl-alphabeta-dehydroalanine N'-dimethylamideCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 202883: Experimental Crystal Structure Determination

2004

Related Article: D.Siodlak, M.A.Broda, B.Rzeszotarska, E.Kolodziejczyk, A.E.Koziol|2004|Z.Kristallogr.|219|231|doi:10.1524/zkri.219.4.231.30447

Space GroupCrystallographyN-Acetyl-(Z)-dehydro-butyrine dimethylamideCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 201794: Experimental Crystal Structure Determination

2003

Related Article: D.Siodlak, M.A.Broda, B.Rzeszotarska, I.Dybala, A.E.Koziol|2003|J.Pept.Sci.|9|64|doi:10.1002/psc.433

Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersN-Acetyl-(Z)-dehydrophenylalanine N'N'-dimethylamideExperimental 3D Coordinates
researchProduct