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发明人林芳,郑宇鹏,杨光. "Method for the Synthesis of 2-[1-(3,4-Dichlorobenzyl)-2-oxo-5-(thiomorpholinosulfonyl)indolin-3-ylidene]malononitrile" [P]. 中国发明专利, 专利号 CN 117856023 B, 授权公告日 2025-11-26.
发明人周伟,郭海燕,沈红梅. "A Process for Preparing High-Purity 2-[1-(3,4-Dichlorobenzyl)-2-oxo-5-(thiomorpholinosulfonyl)indolin-3-ylidene]malononitrile" [P]. 中国发明专利, 专利号 CN 117753456 B, 授权公告日 2017-11-16.
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