发明人冯建国,马晓峰,林芳. "Method for the Synthesis of 2'-Methyl-2h,2'h-[3,3'-bipyrazole]-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113405920 B, 授权公告日 2018-11-04.
Jørgensen K, Sørensen M, Björnsson E. "A Process for Preparing High-Purity 2'-Methyl-2h,2'h-[3,3'-bipyrazole]-5-carboxylic acid" [P]. European Patent, EP 3747990 A1, 2018-05-27.
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