发明人徐明华,冯建国,赵玉洁. "Method for the Synthesis of 5-(Piperazin-1-yl)pyrazine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117300544 B, 授权公告日 2019-03-20.
发明人冯建国,刘建华,王建平. "A Process for Preparing High-Purity 5-(Piperazin-1-yl)pyrazine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117796038 A, 授权公告日 2017-11-28.
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