Mostrando 10 resultados de: 23
Filtros aplicados
Publisher
Monatshefte fur Chemie(6)
Synthesis(3)
Amino Acids(2)
Journal of Organic Chemistry(2)
Tetrahedron Letters(2)
Área temáticas
Química orgánica(16)
Farmacología y terapéutica(8)
Química analítica(7)
Química física(2)
Química y ciencias afines(2)
Asymmetric pictet-spengler reactions: Synthesis of 1,2,3,4-tetrahydroisoquinoline carboxylic acid (Tic) chimeras
ArticleAbstract: A preparatively simple diastereoselective synthesis of the amino acid chimera (1S,3S)-1,2,3,4-tetrahPalabras claves:amino acids, Cyclizations, Diastereoselectivity, heterocycles, QuinolinesAutores:Broxterman Q.B., Burger K., Duchateau A.L.L., Jan Spengler, Quaedflieg P.J.L.M., Schedel H., Sieler J.Fuentes:googlescopusAn efficient synthesis of N-phosphinoylmethylamino acids and some of their derivatives
ArticleAbstract: N-Phosphinoylmethylamino acid derivatives 11-18 are obtained in high yield on N-bromomethylation ofPalabras claves:Autores:Burger K., Jan SpenglerFuentes:googlescopusA new approach to N-methylaspartic, N-methylglutamic, and N-methyl-α- aminoadipic acid derivatives
ArticleAbstract: N-Methylaspartic acid derivatives and its homologues are obtained by a stereoconservative one-pot prPalabras claves:Hexafluoroacetone, N-Methyl- α-aminoadipic acid, N-Methylaspartic acid, N-Methylglutamic acid, N-Methylthiazol-4-yl-α-amino acidsAutores:Burger K., Jan SpenglerFuentes:scopusA new protection/activation strategy for the synthesis of naturally occurring and non-natural α-N-alkylamino acids
ReviewAbstract: A new method for the preparation of N-methylamino acids and some of their derivatives starting fromPalabras claves:amino acids, Hexafluoroacetone, Pro-Glu-chimeras, Pro-Tau-chimeras, α-N-methylamino acids, α-N-phosphinoylmethylamino acidsAutores:Burger K., Jan Spengler, Schedel H.Fuentes:googlescopusA novel protecting/activating strategy for β-hydroxy acids and its use in convergent peptide synthesis
ArticleAbstract: (Chemical Equation Presented) β-Hydroxy acids were reacted with hexafluoroacetone and carbodiimidesPalabras claves:Autores:Alberício F., Burger K., Jan Spengler, Royo M., Ruíz-Rodríguez J., Winter M., Yraola F.Fuentes:googlescopusApplication of hexafluoroacetone as protecting and activating reagent in solid phase peptide and depsipeptide synthesis
ArticleAbstract: Hexafluoroacetone-protected/activated hydroxy acids [2,2- bis(trifluoromethyl)-1,3-dioxolan-4-ones]Palabras claves:Bidentate reagents, Citramalic acid, Hexafluoroacetone, Tetrahydroisoquinoline carboxylic acidAutores:Alberício F., Burger K., Cupido T., Jan Spengler, Ruiz J.Fuentes:googlescopusAbbreviated nomenclature for cyclic and branched homo- and hetero-detic peptides
ArticleAbstract: Amino acid sequences and linear or head-to-tail cyclopeptides can be represented conveniently in onePalabras claves:Abbreviated nomenclature, Branched peptides, Connected peptide strands, Cyclopeptides, One-line text formulae, RecommendationAutores:Alberício F., Burger K., Giralt E., Jan Spengler, Jiménez J.Fuentes:scopusNO as temporary guanidino-protecting group provides efficient access to Pbf-protected argininic acid
ArticleAbstract: Pbf-protected argininic acid [H-OArg(Pbf)-OH], a building block for Fmoc-solid phase peptide synthesPalabras claves:arginine, Depsipeptides, side-reactions, Solid phase peptide synthesisAutores:Alberício F., Burger K., Cupido T., Jan SpenglerFuentes:googlescopusNew routes to natural and non-natural amino acids
Conference ObjectAbstract:Palabras claves:Autores:Burger K., Jan Spengler, Pires R., Schedel H.Fuentes:googlescopusHexafluoroacetone as a protecting and activating reagent. N- and O-glycosylation of isoserine and isocysteine *
ArticleAbstract: Starting from HFA-protected malic and thiomalic acid a series of O- and N-glycoconjugates suitable fPalabras claves:Glycoconjugates, Glycosylamines, Hexafluoroacetone, Isocyanates, malic acid, Thiomalic acidAutores:Alberício F., Böttcher C., Burger K., Hennig L., Jan SpenglerFuentes:googlescopus