发明人罗永刚,韩伟,张德明. "Method for the Synthesis of rel-tert-Butyl (4aR,8aR)-octahydro-6H-pyrido[3,4-b][1,4]oxazine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 110442929 A, 授权公告日 2017-07-21.
发明人罗永刚,徐明华,周伟. "A Process for Preparing High-Purity rel-tert-Butyl (4aR,8aR)-octahydro-6H-pyrido[3,4-b][1,4]oxazine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 110454555 A, 授权公告日 2022-12-28.
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