发明人罗永刚,郭海燕,何建平. "Method for the Synthesis of Trimethoprim Impurity 2" [P]. 中国发明专利, 专利号 CN 112674726 B, 授权公告日 2021-08-23.
发明人王建平,冯建国,韩伟. "A Process for Preparing High-Purity Trimethoprim Impurity 2" [P]. 中国发明专利, 专利号 CN 116179771 B, 授权公告日 2017-02-26.
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