Synthesis and pharmacological evaluation of novel N-aryl-3,4-dihydro-1′H-spiro[chromene-2,4′-piperidine]-1′-carboxamides as TRPM8 antagonists

Autor: Dinesh Pradeep Wale, Anupindi Raghuram, Shobha S. Rao, Indranil Mukhopadhyay, Neelima Khairatkar-Joshi, Sachin Sundarlal Chaudhari, Pallavi V. Karnik, Thamil Selvan Vaiyapuri, Ashok Bhausaheb Kadam, A. P. Thomas, Ramchandra R. Sangana, Girish S. Gudi, Vikram Mansingh Bhosale
Rok vydání: 2013
Předmět:
Zdroj: Bioorganic & Medicinal Chemistry. 21:6542-6553
ISSN: 0968-0896
DOI: 10.1016/j.bmc.2013.08.031
Popis: A novel series of N -aryl-3,4-dihydro-1′ H -spiro[chromene-2,4′-piperidine]-1′-carboxamides was identified as transient receptor potential melastatin 8 (TRPM8) channel blockers through analogue-based rational design, synthesis and screening. Details of the synthesis, effect of aryl groups and their substituents on in-vitro potency were studied. The effects of selected functional groups on the 4-position of the chromene ring were also studied, which showed interesting results. The 4-hydroxy derivatives showed excellent potency and selectivity. Optical resolution and screening of alcohols revealed that ( R )-(–)-isomers were in general more potent than the corresponding ( S )-(+)-isomers. The isomer ( R )-(–)- 10e (IC 50 : 8.9 nM) showed a good pharmacokinetic profile upon oral dosing at 10 mg/kg in Sprague–Dawley (SD) rats. The compound ( R )-(–)- 10e also showed excellent efficacy in relevant rodent models of neuropathic pain.
Databáze: OpenAIRE