发明人陈志强,马晓峰,胡光. "一种1,7-二氮杂螺[4.4]壬二盐酸的合成方法" [P]. 中国发明专利, 专利号 CN 117395692 A, 授权公告日 2024-02-15.
发明人钱学锋,何建平,胡光. "Method for the Synthesis of 1,7-diazaspiro[4.4]nonane dihydrochloride" [P]. 中国发明专利, 专利号 CN 115477721 A, 授权公告日 2020-08-28.
发明人郑宇鹏,郭海燕,林芳. "A Process for Preparing High-Purity 1,7-diazaspiro[4.4]nonane dihydrochloride" [P]. 中国发明专利, 专利号 CN 110508200 A, 授权公告日 2020-01-08.
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