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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:googlescopusHexafluoroacetone as a protecting and activating reagent: Synthesis of new types of fluoro-substituted α-amino, α-hydroxy and α-mercapto acids
ArticleAbstract: Starting from (S)-aspartic, (S)-malic, (S)-citramalic and (S,R)-thiomalic acid, new types of 4,4-difPalabras claves:amino acids, Fluorine, Hydroxy acids, Mercapto acids, PeptidesAutores:Berger S., Burger K., El-Kousy S.M., Hennig L., Jan Spengler, Koksch B., Lange T., Osipov S.N., Tsouker P.Fuentes:googlescopusIncorporation of the α-mercapto acid unit into peptides
ArticleAbstract: Incorporation of α-mercapto acid units into the backbone of potential drug candidates improves the mPalabras claves:Acylations, Dielectrophiles, Hexafluoroacetone, Peptides, Thiols, Thiomalic acidAutores:Alberício F., Burger K., Haas A., Jan Spengler, Pumpor K.Fuentes:googlescopus