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Nielsen H, Kowalski A, Björnsson E. "Method for the Synthesis of (S)-3-Chloro-7-(2-(hydroxymethyl)morpholino)-2-methyl-5-(trifluoromethyl)-1H-pyrrolo[3,2-b]pyridine-6-carbonitrile" [P]. European Patent, EP 3128942 A1, 2019-01-19.
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