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发明人张德明,何建平,钱学锋. "Method for the Synthesis of (2E)-2-{[(3-methoxyphenyl)amino]methylidene}-2,3,4,9-tetrahydro-1H-carbazol-1-one" [P]. 中国发明专利, 专利号 CN 114361312 B, 授权公告日 2025-10-15.
发明人高志强,刘建华,周伟. "A Process for Preparing High-Purity (2E)-2-{[(3-methoxyphenyl)amino]methylidene}-2,3,4,9-tetrahydro-1H-carbazol-1-one" [P]. 中国发明专利, 专利号 CN 113465166 B, 授权公告日 2025-12-22.
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