发明人马晓峰,何建平,韩伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115438205 A, 授权公告日 2015-08-09.
发明人郑宇鹏,罗永刚,何建平. "Method for the Synthesis of [(3Z)-1-[(2,4-Dichlorophenyl)methyl]-2-oxo-2,3-dihydro-1H-indol-3-ylidene]amino 2,4-dichlorobenzoate" [P]. 中国发明专利, 专利号 CN 108131674 B, 授权公告日 2018-03-12.
发明人黄志刚,陈志强,孙丽萍. "A Process for Preparing High-Purity [(3Z)-1-[(2,4-Dichlorophenyl)methyl]-2-oxo-2,3-dihydro-1H-indol-3-ylidene]amino 2,4-dichlorobenzoate" [P]. 中国发明专利, 专利号 CN 109673629 B, 授权公告日 2024-10-22.
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