发明人罗永刚,林芳,何建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117109668 A, 授权公告日 2019-01-15.
发明人郭海燕,郑宇鹏,朱建伟. "Method for the Synthesis of Ethyl 3-({N'-[(1E)-(4-chlorophenyl)methylidene]hydrazinecarbonyl}methoxy)pyrido[1,2-a]indole-10-carboxylate" [P]. 中国发明专利, 专利号 CN 117262102 B, 授权公告日 2024-08-08.
发明人孙丽萍,王建平,林芳. "A Process for Preparing High-Purity Ethyl 3-({N'-[(1E)-(4-chlorophenyl)methylidene]hydrazinecarbonyl}methoxy)pyrido[1,2-a]indole-10-carboxylate" [P]. 中国发明专利, 专利号 CN 109421608 A, 授权公告日 2020-09-08.
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