发明人马晓峰,钱学锋,何建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110205822 A, 授权公告日 2023-05-09.
发明人赵玉洁,徐明华,林芳. "Method for the Synthesis of N-(3-{2,4-dioxo-1,3-diazaspiro[4.4]nonan-3-yl}propyl)-3-(propan-2-yl)thiophene-2-carboxamide" [P]. 中国发明专利, 专利号 CN 116678953 B, 授权公告日 2020-03-18.
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