Patel M V, Fischer A B, Williams B T. "一种头孢托仑匹酯杂质5的合成方法" [P]. US Patent, US 11437775 B2, 2020-07-18.
发明人刘建华,赵玉洁,罗永刚. "Method for the Synthesis of Cefditoren Pivoxil Impurity 5" [P]. 中国发明专利, 专利号 CN 114305055 B, 授权公告日 2023-09-26.
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