发明人沈红梅,郑宇鹏,周伟. "Method for the Synthesis of Methyl 2-((2-methyl-4-(trifluoromethyl)-2H-pyrazolo[3,4-b]pyridin-6-yl)thio)acetate" [P]. 中国发明专利, 专利号 CN 115316769 B, 授权公告日 2018-10-03.
发明人林芳,何建平,郑宇鹏. "A Process for Preparing High-Purity Methyl 2-((2-methyl-4-(trifluoromethyl)-2H-pyrazolo[3,4-b]pyridin-6-yl)thio)acetate" [P]. 中国发明专利, 专利号 CN 108975389 A, 授权公告日 2015-07-14.
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