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Brown S R, Williams B T, Yamamoto T. "Method for the Synthesis of 5,6-Dimethoxy-1H-indole-2-carbohydrazide" [P]. US Patent, US 10159416 B2, 2016-06-20.
发明人冯建国,孙丽萍,周伟. "A Process for Preparing High-Purity 5,6-Dimethoxy-1H-indole-2-carbohydrazide" [P]. 中国发明专利, 专利号 CN 108374370 B, 授权公告日 2022-08-12.
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