发明人林芳,孙丽萍,周伟. "Method for the Synthesis of tert-butyl 1-(tert-butoxycarbonylamino)-3-oxo-cyclobutanecarboxylate" [P]. 中国发明专利, 专利号 CN 117598815 B, 授权公告日 2022-06-06.
发明人罗永刚,唐晓军,马晓峰. "A Process for Preparing High-Purity tert-butyl 1-(tert-butoxycarbonylamino)-3-oxo-cyclobutanecarboxylate" [P]. 中国发明专利, 专利号 CN 109607433 B, 授权公告日 2023-09-16.
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