发明人王建平,马晓峰,韩伟. "一种叶酸杂质29的合成方法" [P]. 中国发明专利, 专利号 CN 114186990 A, 授权公告日 2022-07-23.
发明人周伟,黄志刚,赵玉洁. "Method for the Synthesis of Folic Acid Impurity 29" [P]. 中国发明专利, 专利号 CN 115374546 B, 授权公告日 2015-09-12.
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