发明人张德明,周伟,钱学锋. "Method for the Synthesis of 1'-Methyl-3H-spiro[furan-2,3'-indolin]-2'-one" [P]. 中国发明专利, 专利号 CN 112313684 A, 授权公告日 2016-10-26.
发明人罗永刚,胡光,林芳. "A Process for Preparing High-Purity 1'-Methyl-3H-spiro[furan-2,3'-indolin]-2'-one" [P]. 中国发明专利, 专利号 CN 113822728 B, 授权公告日 2021-01-04.
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