Fischer A B, Lee S K, Brown S R. "Method for the Synthesis of tert-Butyl 4-(3-m-tolylureido)piperidine-1-carboxylate" [P]. US Patent, US 10242815 B2, 2020-11-02.
发明人钱学锋,罗永刚,何建平. "A Process for Preparing High-Purity tert-Butyl 4-(3-m-tolylureido)piperidine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 113767220 B, 授权公告日 2025-10-15.
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