You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (13R)-13-bromo-1,3,4-trihydroxy-5,10-dimethyl-14-propan-2-yl-12-oxatricyclo[8.2.2.02,7]tetradeca-2(7),3,5-trien-11-one .
user
C18H23BrO5
assistant