You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[3-[5-chloro-6-(1,3-oxazol-5-ylmethoxy)-3,4-dihydro-1H-isoquinolin-2-yl]-2-hydroxypropyl]-3-(cyclobutylamino)benzamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H31ClN4O4
assistant