发明人郭海燕,林芳,王建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112558174 A, 授权公告日 2024-04-05.
发明人钱学锋,冯建国,唐晓军. "Method for the Synthesis of Ethyl 6-methoxy-7-methyl-6H-[1,2,5]oxadiazolo[3,4-e]indole-8-carboxylate" [P]. 中国发明专利, 专利号 CN 116537967 A, 授权公告日 2018-01-20.
发明人杨光,钱学锋,张德明. "A Process for Preparing High-Purity Ethyl 6-methoxy-7-methyl-6H-[1,2,5]oxadiazolo[3,4-e]indole-8-carboxylate" [P]. 中国发明专利, 专利号 CN 108804680 B, 授权公告日 2017-10-05.
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