发明人林芳,高志强,孙丽萍. "Method for the Synthesis of 6-Hydroxy-5H-indol-5-one" [P]. 中国发明专利, 专利号 CN 111526249 A, 授权公告日 2024-01-02.
发明人唐晓军,韩伟,孙丽萍. "A Process for Preparing High-Purity 6-Hydroxy-5H-indol-5-one" [P]. 中国发明专利, 专利号 CN 109324265 A, 授权公告日 2019-03-03.
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