The development of sensors that recognize Lewis oligosaccharides can help the diagnosis and early detection of cancer. Herein, we reported the design and synthesis of a series of anthracene-based bisboronic acids （9a...The development of sensors that recognize Lewis oligosaccharides can help the diagnosis and early detection of cancer. Herein, we reported the design and synthesis of a series of anthracene-based bisboronic acids （9a-9e） with different N-substituents near the boronic acid unit. Among them, compound 9a could recognize sialyl Lewis X（sLex） with selectivity over other Lewis sugars, and could significantly stain sLeX-expressing HEPG2 cells with selectivity over the range of 0.1-10 μmol/L. Compound 9a possibly has two properly positioned boronic acids caused by the steric hindrance by the near N-benzyl substituent group, which empower its sLe^x selectivity and higher binding affinity.展开更多
基金Supported by the National Natural Science Foundation of China（No.21372060）, the Natural Science Fund for Distinguished Young Scholars of Hebei Province, China（No.B2015201005）, the Natural Science Foundation of Hebei Province, China （No.B2018201234） and the Foundation of Hebei Education Department, China （No.QB2017015）.
文摘The development of sensors that recognize Lewis oligosaccharides can help the diagnosis and early detection of cancer. Herein, we reported the design and synthesis of a series of anthracene-based bisboronic acids （9a-9e） with different N-substituents near the boronic acid unit. Among them, compound 9a could recognize sialyl Lewis X（sLex） with selectivity over other Lewis sugars, and could significantly stain sLeX-expressing HEPG2 cells with selectivity over the range of 0.1-10 μmol/L. Compound 9a possibly has two properly positioned boronic acids caused by the steric hindrance by the near N-benzyl substituent group, which empower its sLe^x selectivity and higher binding affinity.
