发明人王建平,周伟,朱建伟. "Method for the Synthesis of tert-Butyl 3,4,9,9a-tetrahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate" [P]. 中国发明专利, 专利号 CN 113506594 B, 授权公告日 2015-04-24.
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