发明人张德明,杨光,钱学锋. "Method for the Synthesis of Ethyl 3-formyl-6-methyl-1H-indole-2-carboxylate" [P]. 中国发明专利, 专利号 CN 112000082 A, 授权公告日 2022-06-08.
发明人罗永刚,高志强,沈红梅. "A Process for Preparing High-Purity Ethyl 3-formyl-6-methyl-1H-indole-2-carboxylate" [P]. 中国发明专利, 专利号 CN 117509382 A, 授权公告日 2016-01-11.
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