Abstract: Disclosed is a PD-L1 inhibitor, and specifically disclosed is a compound of formula (I) as a PD-L1 immunomodulator, a pharmaceutically acceptable salt or an isomer thereof.
Abstract: The present invention relates to a PD-L1 immunomodulator, and specifically discloses a compound of formula (I) as a PD-L1 immunomodulator, a pharmaceutically acceptable salt or an isomer thereof.