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Park J H, Williams B T, Johnson M A. "Method for the Synthesis of (R)-N-(5-(tert-Butyl)-4-((4-hydroxy-6-isopropyl-2-oxo-6-phenethyl-5,6-dihydro-2H-pyran-3-yl)thio)-2-methylphenyl)-5-(trifluoromethyl)pyridine-2-sulfonamide" [P]. US Patent, US 10669777 B2, 2021-06-14.
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