发明人杨光,罗永刚,何建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114375186 A, 授权公告日 2024-05-05.
发明人冯建国,黄志刚,高志强. "Method for the Synthesis of Methyl 8-methyl-1-thia-4,8-diazaspiro[4.5]Decane-3-carboxylate dihydrochloride" [P]. 中国发明专利, 专利号 CN 114391130 A, 授权公告日 2022-04-01.
发明人沈红梅,郑宇鹏,赵玉洁. "A Process for Preparing High-Purity Methyl 8-methyl-1-thia-4,8-diazaspiro[4.5]Decane-3-carboxylate dihydrochloride" [P]. 中国发明专利, 专利号 CN 110145771 B, 授权公告日 2017-02-22.
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