[EN] HETEROCYCLIC COMPOUNDS AS CALCIUM SENSING RECEPTOR MODULATORS FOR THE TREATMENT OF HYPERPARATHYROIDISM, CHRONIC RENAL FAILURE AND CHRONIC KIDNEY DISEASE<br/>[FR] COMPOSÉS HÉTÉROCYCLIQUES EN TANT QUE MODULATEURS DES RÉCEPTEURS DE DÉTECTION DU CALCIUM POUR LE TRAITEMENT DE L'HYPERPARATHYROÏDIE, DE L'INSUFFISANCE RÉNALE CHRONIQUE ET DE LA NÉPHROPATHIE CHRONIQUE
申请人:LUPIN LTD
公开号:WO2015162538A1
公开(公告)日:2015-10-29
The invention relates to heterocyclic compounds of Formula (I) and their pharmaceutically acceptable salts, wherein the substituents are as described herein, and their pharmaceutical compositions for use in medicine for the treatment of diseases or disorders associated with the modulation of calcium sensing receptor modulators (CaSR), like e.g. hyperparathyroidism, chronic renal failure and chronic kidney disease and their complications.
Using odorless thiourea as the S source, benzothiazoles and asymmetric disulfides could be obtained from thioformanilides through the tandem cyclization/nucleophilic addition/hydrolysis/nucleophilic substitution reaction. Furthermore, the obtained asymmetric disulfides could readily transfer to benzothiazoles after nitro-reduction and amide formation reaction. This metal-free and recyclable synthetic methodology offered a time-efficient, less expensive, and environmentally friendly alternative to multifunctional benzothiazoles. (C) 2015 Elsevier Ltd. All rights reserved.