1. School of Pharmacy Continuous Flow Engineering Laboratory of National Petroleum and Chemical Industry Changzhou University Changzhou Jiangsu Province 213164 China
2. School of Chemistry and Chemical Engineering Nanjing University Nanjing Jiangsu Province 210093 China
3. School of Life and Science Nanjing Normal University Nanjing Jiangsu Province 210046 China
4. Department of Chemistry and Biochemistry Texas Tech University Lubbock Texas 79409‐1061 USA