Martínez F, Schröder R, Jørgensen K. "Method for the Synthesis of 4-Bromo-1',3-dimethyl-5H-spiro[furan-2,3'-indolin]-2'-one" [P]. European Patent, EP 3726640 A1, 2019-05-09.
发明人徐明华,李文辉,唐晓军. "A Process for Preparing High-Purity 4-Bromo-1',3-dimethyl-5H-spiro[furan-2,3'-indolin]-2'-one" [P]. 中国发明专利, 专利号 CN 117023077 B, 授权公告日 2025-12-22.
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