The present invention provides a
polycyclic compound represented by formula (I) and a use in dual inhibitors of AR and BET. Specifically, the present invention provides the use of a compound represented by formula (I) or optical isomers, solvates, pharmaceutically acceptable salts, prodrugs, tautomers, mesomers, racemates, enantiomers, diastereomers, mixture form, metabolites, metabolic precursorsor isotopic substitution form thereof in the preparation of dual inhibitors of AR and BET. Experimental results show that the compounds of the present invention can not only inhibit the transcriptionof PSA and
FKBP5 downstream of AR, but also inhibit the
transcriptional activity of AR-F876L mutants resistant to anthralin, and also downregulate the expression of BRD4 downstream
protein c-Myc, andthe compounds have good binding affinity to AR and BET proteins. The experiment suggests that the compound of the present invention can inhibit the activity of AR and BET
protein at the same time, and has a good application prospect in the preparation of
medicine for preventing and / or treating diseases related to BET
protein.