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|Title:||Continuous flow synthesis of the URAT1 inhibitor lesinurad|
|Author:||Damião, Mariana C. F. C. B.|
Marçon, Henrique M.
Pastre, Julio Cezar
|Abstract:||Herein, the urate anion exchange transporter 1 (URAT1) inhibitor lesinurad is synthesized from commercially available building blocks by a five-step linear continuous flow sequence. Our previously developed continuous flow platform was successfully applied to generate the 3-thio-1,2,4-triazole key intermediate 2 in 88% yield, after 55 minutes of residence time. Condensation, cyclization and S-alkylation were telescoped in a single operation without conducting solvent exchanges and intermediate purifications. Next, 1,2,4-triazole bromination and ester hydrolysis were also performed in continuous flow regime to deliver lesinurad in 68% overall yield in a total residence time of 2 hours. Our approach enables the fast generation of lesinurad and can be directly applied to produce major quantities of this important API|
|Editor:||Royal Society of Chemistry|
|Appears in Collections:||IQ - Artigos e Outros Documentos|
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