1. College of Chemistry and Chemical Engineering Henan Engineering Research Center of Green Synthesis for Pharmaceuticals Shangqiu Normal University Shangqiu Henan 476000 China
2. College of Chemistry and Chemical Engineering Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs Anyang Normal University Anyang Henan 455000 China
3. College of Chemistry Zhengzhou University Zhengzhou Henan 450001 China