Abstract: Described herein, inter alia, are imidazopyridine derivatives (I), pharmaceutically acceptable salts and tautomers thereof, compounds, combinations and medicaments containing said compounds and processes for their preparation. In embodiments, the imidazopyridine derivatives can be used as regulators of a stimulator of interferon genes (STING) and a related signal path thereof, and can effectively treat and/or relieve multiple types of diseases, including but not limited to malignant tumors, inflammations, autoimmune diseases, infectious diseases and as vaccine adjuvants.