The research team led by Professor Zhang Jiancun of the State Key Laboratory of Respiratory Disease worked with Guangzhou Institutes of Biomedicine and Health of Chinese Academy of Sciences had made a new progress in the research of immune checkpoints. The related research finding was published online by Bioorganic Chemistry (IF: 3.926) with the title of “Rational design, synthesis and biological evaluation of ubiquinone derivatives as IDO1 inhibitors”.