名称:
Development of a Highly Potent, Novel M5 Positive Allosteric Modulator (PAM) Demonstrating CNS Exposure: 1-((1H-Indazol-5-yl)sulfoneyl)-N-ethyl-N-(2-(trifluoromethyl)benzyl)piperidine-4-carboxamide (ML380)
摘要:
A functional high throughput screen identified a novel chemotype for the positive allosteric modulation (PAM) of the muscarinic acetylcholine receptor (mAChR) subtype 5 (M-5). Application of rapid analog, iterative parallel synthesis efficiently optimized M-5 potency to arrive at the most potent M-5 PAMs prepared to date and provided tool compound 8n (ML380) demonstrating modest CNS penetration (human M-5 EC50 = 190 nM, rat M-5 EC50 = 610 nM, brain to plasma ratio (K-p) of 0.36).