发明人刘建华,郑宇鹏,杨光. "Method for the Synthesis of 6-Amino-3-(3,4-dimethoxyphenethyl)-2H-benzo[e][1,3]oxazine-2,4(3H)-dione" [P]. 中国发明专利, 专利号 CN 114224480 A, 授权公告日 2025-05-13.
发明人沈红梅,孙丽萍,钱学锋. "A Process for Preparing High-Purity 6-Amino-3-(3,4-dimethoxyphenethyl)-2H-benzo[e][1,3]oxazine-2,4(3H)-dione" [P]. 中国发明专利, 专利号 CN 111432867 B, 授权公告日 2016-05-18.
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