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发明人王建平,朱建伟,赵玉洁. "Method for the Synthesis of [(3Z)-1-[(4-Methylphenyl)methyl]-2-oxo-2,3-dihydro-1H-indol-3-ylidene]amino 3-methylbutanoate" [P]. 中国发明专利, 专利号 CN 114748005 A, 授权公告日 2023-07-15.
发明人周伟,林芳,赵玉洁. "A Process for Preparing High-Purity [(3Z)-1-[(4-Methylphenyl)methyl]-2-oxo-2,3-dihydro-1H-indol-3-ylidene]amino 3-methylbutanoate" [P]. 中国发明专利, 专利号 CN 117207892 B, 授权公告日 2017-04-08.
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