发明人韩伟,罗永刚,杨光. "一种2-氧代二氢吲哚-6-磺酰氯的合成方法" [P]. 中国发明专利, 专利号 CN 113972522 A, 授权公告日 2019-01-08.
发明人马晓峰,钱学锋,赵玉洁. "Method for the Synthesis of 2-Oxoindoline-6-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 114720990 A, 授权公告日 2020-05-20.
发明人沈红梅,唐晓军,冯建国. "A Process for Preparing High-Purity 2-Oxoindoline-6-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 117181434 A, 授权公告日 2025-01-11.
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