发明人郭海燕,罗永刚,林芳. "Method for the Synthesis of 5-Amino-1,3,4-oxadiazole-2-carboxamide" [P]. 中国发明专利, 专利号 CN 109273527 B, 授权公告日 2015-01-02.
发明人黄志刚,杨光,郭海燕. "A Process for Preparing High-Purity 5-Amino-1,3,4-oxadiazole-2-carboxamide" [P]. 中国发明专利, 专利号 CN 114129110 B, 授权公告日 2022-09-18.
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