Potent nonpeptide vasopressin receptor antagonists based on oxazino- and thiazinobenzodiazepine templates
摘要:
Vasopressin receptor antagonists can elicit ion-sparing diuretic effects (i.e., aquaresis) in vivo by blunting the action of the circulating hypophyseal hormone arginine vasopressin. We have identified two new series of basic tricyclic benzodiazepines, represented by general structure 1, which contain compounds that bind with high affinity to human V-2 receptors. For example, (S)-(+)-8 and 5 are potent and selective V2 receptor antagonists with pronounced aquaretic activity in rats on oral administration. (C) 2004 Elsevier Ltd. All rights reserved.
Synthesis, resolution, and absolute configuration of novel tricyclic benzodiazepines
摘要:
The synthesis, resolution, and stereochemical characterization of novel piperazino-, thiazino-, and oxazinoberizodiazepines are described. The absolute stereochemistry of the heterotricycles was determined by using X-ray crystallography and the enantiomeric purity was determined by using Pirkle-solvent NMR techniques and chiral HPLC. (C) 2004 Elsevier Ltd. All rights reserved.