You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4,4,5,5-tetramethyl-2-(4-phenylnaphtho[2,3-b][1]benzofuran-1-yl)-1,3,2-dioxaborolane is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H25BO3
assistant