2. Academic Validation
  3. EMD 281014, a new selective serotonin 5-HT2A receptor antagonist

EMD 281014, a new selective serotonin 5-HT2A receptor antagonist

  • Eur J Pharmacol. 2003 Jul 25;473(2-3):229-30. doi: 10.1016/s0014-2999(03)01992-7.
Gerd D Bartoszyk 1,  Christoph van Amsterdam,  Henning Böttcher,  Christoph A Seyfried
Affiliations

Affiliation

  • 1 Department of CNS Research, Preclinical Research Merck KGaA, 64271 Darmstadt, Germany. [email protected]
PMID: 12892843 DOI: 10.1016/s0014-2999(03)01992-7
Abstract

The 5-HT2A receptor ligand 7-[4-[2-(4-fluoro-phenyl)-ethyl]-piperazine-1-carbonyl]-1H-indole-3-carbonitrile HCl (EMD 281014) selectively binds to human (h) and rat 5-HT2A receptors (IC50 values 0.35 and 1 nM, respectively; vs. 1334 nM for h5-HT2C) and inhibited 5-HT-stimulated [35S]guanosine 5'-O-3-thiotriphosphate (GTPgammaS)-accumulation in h5-HT2A transfected Chinese hamster ovary cells (IC50 9.3 nM). EMD 28014 counteracted the N-ethoxycarbonyl-2-ethoxy-1,2-dihydroquinoline (EEDQ)-induced decrease of [3H]ketanserin binding in rat frontal cortex (ID50 0.4 mg/kg p.o.) and R-(-)-1-(2,5-dimethoxy-4-iodophenyl)-aminopropane (DOI)-induced head-twitch behaviour in mice (ID50 0.01 mg/kg s.c., 0.06 mg/kg p.o.), demonstrating unique selectivity and efficacy.

Figures
Products