Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 83, Issue 19, Pages 11571-11576Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.8b01551
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We report an efficient synthesis of GDC-0810 on the basis of a sequence involving a highly stereoselective lithium tert-butoxide-mediated enolization tosylation (>= 95:5 E:Z) and a Pd-catalyzed Suzuki Miyaura cross-coupling as key steps. Global deprotection, pyrrolidine salt formation, and final active pharmaceutical ingredient (API) form control/isolation produced GDC-0810 free acid in a 40% overall yield with >99.0% purity as ascertained by HPLC analysis.
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