GluK1 antagonists from 6-(tetrazolyl)phenyl decahydroisoquinoline derivatives: In vitro profile and in vivo analgesic efficacy
摘要:
We have explored the decahydroisoquinoline scaffold, bearing a phenyl tetrazole, as GluK1 antagonists with potential as oral analgesics. We have established the optimal linker atom between decahydroisoquinoline and phenyl rings and demonstrated an improvement of both the affinity for the GluK1 receptor and the selectivity against the related GluA2 receptor with proper phenyl substitution. In this Letter, we also disclose in vivo data that led to the discovery of LY545694 center dot HCl, a compound with oral efficacy in two persistent pain models. (C) 2013 Elsevier Ltd. All rights reserved.