You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (1'Z,3Z,5Z,12'Z)-2,3'-dimethylidene-6'-(4-methylphenyl)spiro[7H-1-benzoxecine-8,10'-tricyclo[11.4.0.04,9]heptadeca-1,4(9),5,7,12,14,16-heptaene];(1Z,3Z,5Z,7E)-N-methyl-1-phenylnona-1,3,5,7-tetraen-1-amine .
user
C54H51NO
assistant