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发明人黄志刚,周伟,冯建国. "Method for the Synthesis of 1-methyl-1H-pyrazolo[3,4-b]pyridine-5-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 113217998 B, 授权公告日 2021-02-11.
发明人沈红梅,黄志刚,李文辉. "A Process for Preparing High-Purity 1-methyl-1H-pyrazolo[3,4-b]pyridine-5-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 115206438 B, 授权公告日 2016-07-15.
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