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发明人胡光,刘建华,王建平. "Method for the Synthesis of 2-(2-(4-Methylpiperazin-1-yl)ethyl)-6-nitro-2H-benzo[b][1,4]oxazin-3(4H)-one" [P]. 中国发明专利, 专利号 CN 110538551 B, 授权公告日 2022-01-24.
发明人何建平,罗永刚,刘建华. "A Process for Preparing High-Purity 2-(2-(4-Methylpiperazin-1-yl)ethyl)-6-nitro-2H-benzo[b][1,4]oxazin-3(4H)-one" [P]. 中国发明专利, 专利号 CN 109585209 B, 授权公告日 2024-03-01.
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