You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
6-(3-methoxypropyl)-5-(4-phenylpiperazine-1-carbonyl)-1,6,8-triazatricyclo[7.4.0.03,7]trideca-3(7),4,8,10,12-pentaen-2-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H27N5O3
assistant