57310-39-1Relevant articles and documents
Design, synthesis and structure–activity relationships of novel phenylalanine-based amino acids as kainate receptors ligands
Szymańska, Ewa,Cha?upnik, Paulina,Szczepańska, Katarzyna,Cu?ado Moral, Ana Maria,Pickering, Darryl S.,Nielsen, Birgitte,Johansen, Tommy N.,Kie?-Kononowicz, Katarzyna
supporting information, p. 5568 - 5572 (2016/11/09)
A new series of carboxyaryl-substituted phenylalanines was designed, synthesized and pharmacologically characterized in vitro at native rat ionotropic glutamate receptors as well as at cloned homomeric kainate receptors GluK1–GluK3. Among them, six compounds bound to GluK1 receptor subtypes with reasonable affinity (Kivalues in the range of 4.9–7.5?μM). A structure–activity relationship (SAR) for the obtained series, focused mainly on the pharmacological effect of structural modifications in the 4- and 5-position of the phenylalanine ring, was established. To illustrate the results, molecular docking of the synthesized series to the X-ray structure of GluK1 ligand binding core was performed. The influence of individual substituents at the phenylalanine ring for both the affinity and selectivity at AMPA, GluK1 and GluK3 receptors was analyzed, giving directions for future studies.
Covenient Halodeamination and Hydrodeamination of Primary Amines
Guziec, Frank S.,Wei, Dongchu
, p. 3772 - 3776 (2007/10/02)
Treatment of p-toluenesulfonamides of primary amines with 2 equiv of chloroamine at room temperature in the presence of base leads to reductive deamination.If excess chloroamine is present, the corresponding alkyl or aryl halides are obtained instead in good yields.Both reactions presumably proceed via tosylhydrazine and diazene intermediates; the course of the reaction is often governed by steric hindrance.Treatment of the isolated tosylhydrazine intermediate with base and chloroamine, bromine, or iodine also leads to the corresponding halides in very good yields.