Abstract:
:We recently reported on a controlled deactivation/detoxification approach for obtaining cannabinoids with improved druggability. Our design incorporates a metabolically labile ester group at strategic positions within the THC structure. We have now synthesized a series of (-)-Δ(8)-THC analogues encompassing a carboxyester group within the 3-alkyl chain in an effort to explore this novel cannabinergic chemotype for CB receptor binding affinity, in vitro and in vivo potency and efficacy, as well as controlled deactivation by plasma esterases. We have also probed the chain's polar characteristics with regard to fast onset and short duration of action. Our lead molecule, namely 2-[(6aR,10aR)-6a,7,10,10a-tetrahydro-1-hydroxy-6,6,9-trimethyl-6H-dibenzo[b,d]pyran-3-yl]-2-methyl-propanoic acid 3-cyano-propyl ester (AM7438), showed picomolar affinity for CB receptors and is deactivated by plasma esterases while the respective acid metabolite is inactive. In further in vitro and in vivo experiments, the compound was found to be a remarkably potent and efficacious CB1 receptor agonist with relatively fast onset/offset of action.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Nikas SP,Sharma R,Paronis CA,Kulkarni S,Thakur GA,Hurst D,Wood JT,Gifford RS,Rajarshi G,Liu Y,Raghav JG,Guo JJ,Järbe TU,Reggio PH,Bergman J,Makriyannis Adoi
10.1021/jm501165dsubject
Has Abstractpub_date
2015-01-22 00:00:00pages
665-81issue
2eissn
0022-2623issn
1520-4804journal_volume
58pub_type
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