You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 4-[2-amino-2-[3-(3-methylimidazol-4-yl)-1,2,4-oxadiazol-5-yl]ethyl]phenol by IUPAC nomenclature, provide its molecular formula.
user
C14H15N5O2
assistant