You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[1-(4-methoxyphenyl)-3-[2-[(4-methoxyphenyl)methyl]-1-oxo-2,8-diazaspiro[4.5]decan-8-yl]propyl]cyclopentanecarboxamide;hydrochloride by IUPAC nomenclature, provide its molecular formula.
user
C32H44ClN3O4
assistant