You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-methyl-1-[3-[2-[5-[(2R)-oxan-2-yl]furan-2-yl]imidazol-1-yl]phenyl]tetrazole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H20N6O2
assistant