发明人黄志刚,钱学锋,冯建国. "Method for the Synthesis of All-Rac-Phytomenadione EP Impurity B" [P]. 中国发明专利, 专利号 CN 115587712 A, 授权公告日 2018-02-17.
Kumar R, Park J H, Johnson M A. "A Process for Preparing High-Purity All-Rac-Phytomenadione EP Impurity B" [P]. US Patent, US 11713740 B2, 2022-07-25.
参考文献 Literature
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