You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1'-[[4-(4-methylpiperazin-1-yl)phenyl]methyl]spiro[cyclopentane-1,3'-imidazo[2,1-b]quinazoline]-2',5'-dione;hydrochloride is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H30ClN5O2
assistant