发明人韩伟,郭海燕,林芳. "一种左叶酸13C,d3的合成方法" [P]. 中国发明专利, 专利号 CN 115397910 A, 授权公告日 2019-07-25.
发明人高志强,冯建国,马晓峰. "Method for the Synthesis of Levomefolic Acid-13C,d3" [P]. 中国发明专利, 专利号 CN 117547690 A, 授权公告日 2023-01-15.
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