Rossi M, Sørensen M, Nielsen H. "Method for the Synthesis of N-{3-tert-butyl-1-methyl-4-oxo-1H,4H-indeno[1,2-c]pyrazol-6-yl}thiophene-2-carboxamide" [P]. European Patent, EP 3631009 A1, 2016-12-23.
发明人张德明,郑宇鹏,孙丽萍. "A Process for Preparing High-Purity N-{3-tert-butyl-1-methyl-4-oxo-1H,4H-indeno[1,2-c]pyrazol-6-yl}thiophene-2-carboxamide" [P]. 中国发明专利, 专利号 CN 112317241 A, 授权公告日 2019-12-24.
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