1-Pentyl-3-phenylacetylindoles, a new class of cannabimimetic indoles.
A new class of cannabimimetic indoles, with 3-phenylacetyl or substituted 3-phenylacetyl substituents, has been prepared and their affinities for the cannabinoid CB1 and CB2 receptors have been determined. In general those compounds with a 2-substituted phenylacetyl group have good affinity for both receptors. The 4-substituted analogs have little affinity for either receptor, while the 3-substituted compounds are intermediate in their affinities. Two of these compounds, 1-pentyl-3-(2-methylphenylacetyl)indole (JWH-251) and 1-pentyl-3-(3-methoxyphenylacetyl)indole (JWH-302), have 5-fold selectivity for the CB1 receptor with modest affinity for the CB2 receptor. GTPgammaS determinations indicate that both compounds are highly efficacious agonists at the CB1 receptor and partial agonists at the CB2 receptor.
Huffman
John W
JW
Howard L. Hunter Laboratory, Clemson University, Clemson, SC 29634-0973, USA. huffman@clemson.edu
Szklennik
Paul V
PV
Almond
Amanda
A
Bushell
Kristen
K
Selley
Dana E
DE
He
Hengjun
H
Cassidy
Michael P
MP
Wiley
Jenny L
JL
Martin
Billy R
BR
D000107:Acetylation; D040761:Biomimetic Materials / Q000737:chemistry* / Q000145:classification / Q000378:metabolism / Q000494:pharmacology*; D002186:Cannabinoids / Q000737:chemistry*; D007211:Indoles / Q000138:chemical synthesis / Q000737:chemistry* / Q000145:classification / Q000494:pharmacology*; D015394:Molecular Structure; D010420:Pentanes / Q000737:chemistry*; D043884:Receptor, Cannabinoid, CB1 / Q000819:agonists / Q000378:metabolism; D043885:Receptor, Cannabinoid, CB2 / Q000819:agonists / Q000378:metabolism; D013329:Structure-Activity Relationship
D002186:Cannabinoids; D007211:Indoles; D010420:Pentanes; D043884:Receptor, Cannabinoid, CB1; D043885:Receptor, Cannabinoid, CB2; C033353:pentane