发明人刘建华,周伟,高志强. "Method for the Synthesis of 1-(Pyrazin-2-yl)cyclobutane-1-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110854063 B, 授权公告日 2024-05-16.
Martínez F, Lefèvre J P, Björnsson E. "A Process for Preparing High-Purity 1-(Pyrazin-2-yl)cyclobutane-1-carboxylic acid" [P]. European Patent, EP 3804482 A1, 2017-06-25.
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