发明人何建平,徐明华,郭海燕. "Method for the Synthesis of Lornoxicam Impurity 33" [P]. 中国发明专利, 专利号 CN 109133440 A, 授权公告日 2018-05-20.
发明人李文辉,钱学锋,沈红梅. "A Process for Preparing High-Purity Lornoxicam Impurity 33" [P]. 中国发明专利, 专利号 CN 110578260 A, 授权公告日 2018-09-19.
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