发明人罗永刚,胡光,唐晓军. "Method for the Synthesis of 4-(4-Fluorophenyl)-1,7-dithia-4-azaspiro[4.4]nonan-3-one 7,7-dioxide" [P]. 中国发明专利, 专利号 CN 111417760 B, 授权公告日 2018-03-11.
发明人李文辉,高志强,郑宇鹏. "A Process for Preparing High-Purity 4-(4-Fluorophenyl)-1,7-dithia-4-azaspiro[4.4]nonan-3-one 7,7-dioxide" [P]. 中国发明专利, 专利号 CN 114854104 B, 授权公告日 2016-06-28.
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