1345983-39-2

Upstream product

• 613-70-7 2-methoxyphenyl acetate 
• 69845-06-3 3-hydroxy-4-methoxythiophenol 
• 358-23-6 trifluoromethylsulfonic anhydride 

Downstream Products

• 1345983-40-5 methyl (3R,5R)-3-butyl-3-ethyl-7-(methyloxy)-5-phenyl-2,3,4,5-tetrahydro-1,4-benzothiazepine-8-carboxylate 1,1-dioxide 
• 1345983-55-2 ethyl (2E)-3-[(3R,5R)-3-butyl-3-ethyl-7-(methyloxy)-1,1-dioxido-5-phenyl-2,3,4,5-tetrahydro-1,4-benzothiazepin-8-yl]-2-propenoate 
• 1345983-43-8 (3R,5R)-3-butyl-3-ethyl-7-(methyloxy)-5-phenyl-2,3,4,5-tetrahydro-1,4-benzothiazepine-8-carbonitrile-1,1-dioxide 
• 1345983-85-8 (3R,5R)-3-butyl-3-ethyl-N-methyl-N,7-bis(methyloxy)-5-phenyl-2,3,4,5-tetrahydro-1,4-benzothiazepine-8-carboxamide 1,1-dioxide 
• 1345983-86-9 diethyl {[(3R,5R)-3-butyl-3-ethyl-7-(methyloxy)-1,1-dioxido-5-phenyl-2,3,4,5-tetrahydro-1,4-benzothiazepin-8-yl]methylidene}propanedioate 
• 1345983-87-0 tetraethyl 2-[(3R,5R)-3-butyl-3-ethyl-7-(methyloxy)-1,1-dioxido-5-phenyl-2,3,4,5-tetrahydro-1,4-benzothiazepin-8-yl]-1,1,3,3-propanetetracarboxylate 
• 1345983-88-1 dimethyl 3-({[(3R,5R)-3-butyl-3-ethyl-7-(methyloxy)-1,1-dioxido-5-phenyl-2,3,4,5-tetrahydro-1,4-benzothiazepin-8-yl]carbonyl}amino)pentanedioate 
• 1345983-90-5 dimethyl 3-({[(3R,5R)-3-butyl-3-ethyl-7-(methyloxy)-1,1-dioxido-5-phenyl-2,3,4,5-tetrahydro-1,4-benzothiazepin-8-yl]methyl}amino)pentanedioate 
• 1345982-26-4 3-({[(3R,5R)-3-butyl-3-ethyl-7-(methyloxy)-1,1-dioxo-5-phenyl-2,3,4,5-tetrahydro-1,4-benzothiazepin-8-yl]carbonyl}-amino)-2,2-dimethylpropanoic acid 
• 1345982-36-6 [(3R,5R)-3-butyl-3-ethyl-7-(methyloxy)-1,1-dioxo-5-phenyl-2,3,4,5-tetrahydro-1,4-benzothiazepin-8-yl]methanesulfonic acid trifluoroacetate salt 
• 1345982-40-2 2,2'-({[(3R,5R)-3-butyl-3-ethyl-7-(methyloxy)-1,1-dioxido-5-phenyl-2,3,4,5-tetrahydro-1,4-benzothiazepin-8-yl]methyl}imino)diacetic acid hydrochloride salt 
• 1345983-92-7 C₃₁H₄₄N₂O₇S 
• 1345982-41-3 (3R,5R)-3-butyl-3-ethyl-7-(methyloxy)-5-phenyl-2,3,4,5-tetrahydro-1,4-benzothiazepine-8-carboxamide-1,1-dioxide 
• 1345982-42-4 (2E)-3-[(3R,5R)-3-butyl-3-ethyl-7-(methyloxy)-1,1-dioxido-5-phenyl-2,3,4,5-tetrahydro-1,4-benzothiazepin-8-yl]-2-propenoic acid ammonium salt 

Relevant academic research and scientific papers

SYNTHESIS OF BENZOTHIAZEPINES

Methods for preparing the following compound are disclosed.

Discovery of a highly potent, nonabsorbable apical sodium-dependent bile acid transporter inhibitor (GSK2330672) for treatment of type 2 diabetes

The apical sodium-dependent bile acid transporter (ASBT) transports bile salts from the lumen of the gastrointestinal (GI) tract to the liver via the portal vein. Multiple pharmaceutical companies have exploited the physiological link between ASBT and hepatic cholesterol metabolism, which led to the clinical investigation of ASBT inhibitors as lipid-lowering agents. While modest lipid effects were demonstrated, the potential utility of ASBT inhibitors for treatment of type 2 diabetes has been relatively unexplored. We initiated a lead optimization effort that focused on the identification of a potent, nonabsorbable ASBT inhibitor starting from the first-generation inhibitor 264W94 (1). Extensive SAR studies culminated in the discovery of GSK2330672 (56) as a highly potent, nonabsorbable ASBT inhibitor which lowers glucose in an animal model of type 2 diabetes and shows excellent developability properties for evaluating the potential therapeutic utility of a nonabsorbable ASBT inhibitor for treatment of patients with type 2 diabetes.

Enzymatic- and iridium-catalyzed asymmetric synthesis of a benzothiazepinylphosphonate bile acid transporter inhibitor

A synthesis of the benzothiazepine phosphonic acid 3, employing both enzymatic and transition metal catalysis, is described. The quaternary chiral center of 3 was obtained by resolution of ethyl (2-ethyl)norleucinate (4) with porcine liver esterase (PLE) immobilized on Sepabeads. The resulting (R)-amino acid (5) was converted in two steps to aminosulfate 7, which was used for construction of the benzothiazepine ring. Benzophenone 15, prepared in four steps from trimethylhydroquinone 11, enabled sequential incorporation of phosphorus (Arbuzov chemistry) and sulfur (Pd(0)-catalyzed thiol coupling) leading to mercaptan intermediate 18. S-Alkylation of 18 with aminosulfate 7 followed by cyclodehydration afforded dihydrobenzothiazepine 20. Iridium-catalyzed asymmetric hydrogenation of 20 with the complex of [Ir(COD)2BArF] (26) and Taniaphos ligand P afforded the (3R,5R)-tetrahydrobenzothiazepine 30 following flash chromatography. Oxidation of 30 to sulfone 31 and phosphonate hydrolysis completed the synthesis of 3 in 12 steps and 13% overall yield.

CHEMICAL COMPOUNDS

Compounds of Formula (I) and methods for treating metabolic disorders are disclosed.