You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 6-N-[2-[bis(4-methoxyphenyl)-phenylmethoxy]ethyl]-3-N-[2-[2-cyanoethoxy-[di(propan-2-yl)amino]phosphanyl]oxyethyl]phenanthrene-3,6-dicarboxamide .
user
C50H55N4O7P
assistant