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Nowak P, Mueller T C, Lefèvre J P. "A Process for Preparing High-Purity 2-((4-Amino-5-(3,4-dimethoxyphenyl)-4H-1,2,4-triazol-3-yl)thio)acetamide" [P]. European Patent, EP 3180285 A1, 2016-01-23.
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