发明人徐明华,杨光,马晓峰. "Method for the Synthesis of 3-[(5-ethyl-1,3,4-thiadiazol-2-yl)carbamoyl]propanoic acid" [P]. 中国发明专利, 专利号 CN 108375350 B, 授权公告日 2015-01-05.
发明人徐明华,张德明,罗永刚. "A Process for Preparing High-Purity 3-[(5-ethyl-1,3,4-thiadiazol-2-yl)carbamoyl]propanoic acid" [P]. 中国发明专利, 专利号 CN 113558134 B, 授权公告日 2021-05-22.
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