发明人黄志刚,郑宇鹏,周伟. "Method for the Synthesis of 6'-Chlorospiro[cyclobutane-1,3'-indoline]" [P]. 中国发明专利, 专利号 CN 111441162 B, 授权公告日 2022-07-16.
发明人马晓峰,冯建国,李文辉. "A Process for Preparing High-Purity 6'-Chlorospiro[cyclobutane-1,3'-indoline]" [P]. 中国发明专利, 专利号 CN 112134753 A, 授权公告日 2018-11-26.
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