You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3R,4R,5R)-4-(benzylamino)-5-[(4-tert-butyltriazol-1-yl)methyl]oxolan-3-ol The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H26N4O2
assistant