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Park J H, Patel M V, Lee S K. "A Process for Preparing High-Purity 6,7-Dimethoxy-3-(4-methoxybenzyl)-2-((oxiran-2-ylmethyl)thio)quinazolin-4(3H)-imine" [P]. US Patent, US 11694153 B2, 2018-07-12.
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