RESUMO
An efficient and scalable synthesis of an antidiabetic drug, tofogliflozin (1), which was identified as a highly selective sodium glucose cotransporter 2 (SGLT2) inhibitor, is described. A key factor in the synthesis of 1 was the selection of the purpose-designed protecting group, which plays a strategic role in protection, chemoselective activation, and crystalline purification. The developed and optimized method made it possible to prepare 1 on a multidecagram scale without any column chromatography.
Assuntos
Compostos Benzidrílicos/síntese química , Glucose/química , Glucosídeos/síntese química , Inibidores do Transportador 2 de Sódio-Glicose , Transportador 2 de Glucose-Sódio/química , Compostos Benzidrílicos/química , Glucosídeos/química , Estrutura MolecularRESUMO
Inhibition of sodium glucose cotransporter 2 (SGLT2) has been proposed as a novel therapeutic approach to treat type 2 diabetes. In our efforts to discover novel inhibitors of SGLT2, we first generated a 3D pharmacophore model based on the superposition of known inhibitors. A search of the Cambridge Structural Database using a series of pharmacophore queries led to the discovery of an O-spiroketal C-arylglucoside scaffold. Subsequent chemical examination combined with computational modeling resulted in the identification of the clinical candidate 16d (CSG452, tofogliflozin), which is currently under phase III clinical trials.
