NESS-0327

NESS-0327 is a drug used in scientific research which acts as an extremely potent and selective antagonist of the cannabinoid receptor CB1. It is much more potent an antagonist, and more selective for the CB1 receptor over CB2, than the more commonly used ligand rimonabant, with a Ki at CB1 of 350fM (i.e. 0.00035nM) and a selectivity of over 60,000x for CB1 over CB2.[1] Independently, two other groups have described only modest nanomolar CB1 affinity for this compound (125nM[2] and 18.4nM[3]). Also unlike rimonabant, NESS-0327 does not appear to act as an inverse agonist at higher doses, instead being a purely neutral antagonist which blocks the CB1 receptor but does not produce any physiological effect of its own.[4]

NESS-0327
Identifiers
CAS Number
PubChem CID
ChemSpider
UNII
CompTox Dashboard (EPA)
Chemical and physical data
FormulaC24H23Cl3N4O
Molar mass489.83 g·mol−1
3D model (JSmol)
SMILES
  • Clc3cc(Cl)ccc3-n4c2-c1ccc(Cl)cc1CCCc2c(n4)C(=O)NN5CCCCC5
InChI
  • InChI=1S/C24H23Cl3N4O/c25-16-7-9-18-15(13-16)5-4-6-19-22(24(32)29-30-11-2-1-3-12-30)28-31(23(18)19)21-10-8-17(26)14-20(21)27/h7-10,13-14H,1-6,11-12H2,(H,29,32) N
  • Key:NCXBPZJQQSNIRA-UHFFFAOYSA-N N
 NY (what is this?)  (verify)

See also

References
  1. Ruiu S, Pinna GA, Marchese G, Mussinu JM, Saba P, Tambaro S, et al. (July 2003). "Synthesis and characterization of NESS 0327: a novel putative antagonist of the CB1 cannabinoid receptor". The Journal of Pharmacology and Experimental Therapeutics. 306 (1): 363–70. doi:10.1124/jpet.103.049924. PMID 12663689. S2CID 32018707.
  2. Stoit AR, Lange JH, Hartog AP, Ronken E, Tipker K, Stuivenberg HH, et al. (August 2002). "Design, synthesis and biological activity of rigid cannabinoid CB1 receptor antagonists". Chemical & Pharmaceutical Bulletin. 50 (8): 1109–13. doi:10.1248/cpb.50.1109. PMID 12192147.
  3. Zhang Y, Burgess JP, Brackeen M, Gilliam A, Mascarella SW, Page K, et al. (June 2008). "Conformationally constrained analogues of N-(piperidinyl)-5-(4-chlorophenyl)-1-(2,4- dichlorophenyl)-4-methyl-1H-pyrazole-3-carboxamide (SR141716): design, synthesis, computational analysis, and biological evaluations". Journal of Medicinal Chemistry. 51 (12): 3526–39. doi:10.1021/jm8000778. PMID 18512901.
  4. Tambaro S, Mongeau R, Dessi C, Pani L, Ruiu S (November 2005). "Modulation of ATP-mediated contractions of the rat vas deferens through presynaptic cannabinoid receptors". European Journal of Pharmacology. 525 (1–3): 150–3. doi:10.1016/j.ejphar.2005.09.058. PMID 16271359.
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