LY-320,135

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LY-320,135
File:LY-320,135.png
Systematic (IUPAC) name
4-[6-methoxy-2-(4-methoxyphenyl)1-benzofuran-3-carbonyl]benzonitrile
Identifiers
CAS Number 176977-56-3
PubChem CID 5311257
IUPHAR/BPS 742
Chemical data
Formula C24H17NO4
Molar mass 383.395[[Script error: No such module "String".]]
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LY-320,135 is a drug used in scientific research which acts as a selective antagonist of the cannabinoid receptor CB1. It was developed by Eli Lilly in the 1990s.

LY-320,135 displays fairly good selectivity, with a binding affinity for CB1 around 70x stronger than for CB2,[1] but both its potency and selectivity are modest compared to newer agents, and at higher doses it also binds to a range of non-cannabinoid receptors. However LY-320,135 is still fairly widely used in research, particularly for elucidating the mechanisms by which many CB1 antagonists act as inverse agonists at higher doses.[2]

References

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  1. ↑ Felder CC, Joyce KE, Briley EM, Glass M, Mackie KP, Fahey KJ, Cullinan GJ, Hunden DC, Johnson DW, Chaney MO, Koppel GA, Brownstein M. LY320135, a novel cannabinoid CB1 receptor antagonist, unmasks coupling of the CB1 receptor to stimulation of cAMP accumulation. Journal of Pharmacology and Experimental Therapeutics. 1998 Jan;284(1):291-7. PMID 9435190
  2. ↑ Pertwee RG. Inverse agonism and neutral antagonism at cannabinoid CB1 receptors. Life Sciences. 2005 Feb 4;76(12):1307-24. PMID 15670612
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