发明人郭海燕,李文辉,林芳. "Method for the Synthesis of Methyl 3-(2-(1-methyl-2-((4-nitrophenyl)sulfonyl)hydrazineyl)acetamido)thiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 111460779 B, 授权公告日 2020-09-04.
发明人张德明,胡光,马晓峰. "A Process for Preparing High-Purity Methyl 3-(2-(1-methyl-2-((4-nitrophenyl)sulfonyl)hydrazineyl)acetamido)thiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 112296702 B, 授权公告日 2022-06-26.
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