发明人黄志刚,孙丽萍,韩伟. "Method for the Synthesis of 1'-(4-Methoxybenzyl)-4,5-dihydro-2H-spiro[furan-3,3'-indolin]-2'-one" [P]. 中国发明专利, 专利号 CN 111698678 A, 授权公告日 2015-05-04.
发明人马晓峰,郭海燕,林芳. "A Process for Preparing High-Purity 1'-(4-Methoxybenzyl)-4,5-dihydro-2H-spiro[furan-3,3'-indolin]-2'-one" [P]. 中国发明专利, 专利号 CN 108460619 A, 授权公告日 2015-09-11.
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