发明人郭海燕,刘建华,林芳. "一种头孢曲松钠EP杂质A的合成方法" [P]. 中国发明专利, 专利号 CN 113279489 A, 授权公告日 2023-08-04.
Schröder R, Chen K W, Hughes D C. "Method for the Synthesis of Ceftriaxone EP Impurity A" [P]. US Patent, US 9339801 B2, 2022-03-06.
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