发明人徐明华,林芳,高志强. "Method for the Synthesis of 2-((4'-(Tert-butyl)-4-oxospiro[chromane-2,1'-cyclohexan]-7-yl)oxy)acetic acid" [P]. 中国发明专利, 专利号 CN 116688402 A, 授权公告日 2025-07-05.
发明人沈红梅,郭海燕,朱建伟. "A Process for Preparing High-Purity 2-((4'-(Tert-butyl)-4-oxospiro[chromane-2,1'-cyclohexan]-7-yl)oxy)acetic acid" [P]. 中国发明专利, 专利号 CN 110779280 A, 授权公告日 2023-04-03.
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