You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3R)-N-ethyl-3-[[3-(4-methylphenyl)-1,2-oxazol-5-yl]methyl]-1-(pyridin-4-ylmethyl)piperidine-3-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H30N4O2
assistant