You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[1-[5-(3-chlorophenyl)-1,3-oxazol-2-yl]-3-tricyclo[5.3.1.03,9]undecanyl]-6-methylpyridine-2-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H28ClN3O2
assistant