181514-26-1Relevant academic research and scientific papers
Preparation of 1,2,3,4-tetrahydroisoquinolines lacking electron donating groups - An intramolecular cyclization complementary to the Pictet-Spengler reaction
Stokker
, p. 5453 - 5456 (1996)
The synthesis of 1,2,3,4-tetrahydroisoquinolines via an intramolecular cyclization of N-trifluoroacylated phenethylamines devoid of electron donating groups, with paraformaldehyde mediated by acetic/sulfuric acid milieu is described.
Discovery and structure-activity relationship of (1R)-8-chloro-2,3,4,5- tetrahydro-1-methyl-1H-3-benzazepine (Lorcaserin), a selective serotonin 5-HT2C receptor agonist for the treatment of obesity
Smith, Brian M.,Smith, Jeffrey M.,Tsai, James H.,Schultz, Jeffrey A.,Gilson, Charles A.,Estrada, Scott A.,Chen, Rita R.,Park, Douglas M.,Prieto, Emily B.,Gallardo, Charlemagne S.,Sengupta, Dipanjan,Dosa, Peter I.,Covel, Jon A.,Ren, Albert,Webb, Robert R.,Beeley, Nigel R. A.,Martin, Michael,Morgan, Michael,Espitia, Stephen,Saldana, Hazel R.,Bjenning, Christina,Whelan, Kevin T.,Grottick, Andrew J.,Menzaghi, Frederique,Thomsen, William J.
, p. 305 - 313 (2008/09/19)
The synthesis and SAR of a novel 3-benzazepine series of 5-HT2C agonists is described. Compound 7d (lorcaserin, APD356) was identified as one of the more potent and selective compounds in vitro (pEC50 values in functional assays measuring [3H]phosphoinositol turnover: 5-HT 2C = 8.1; 5-HT2A = 6.8; 5-HT2B = 6.1) and was potent in an acute in vivo rat food intake model upon oral administration (ED50 at 6 h = 18 mg/kg). Lorcaserin was further characterized in a single-dose pharmacokinetic study in rat (t1/2 = 3.7 h; F = 86%) and a 28-day model of weight gain in growing Sprague-Dawley rat (8.5% decrease in weight gain observed at 36 mg/kg b.i.d.). Lorcaserin was selected for further evaluation in clinical trials for the treatment of obesity.
