You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R)-5-amino-N-[(8S,11R,14S)-3,18-bis(2-aminoethoxy)-8-(2-cyanoaziridine-1-carbonyl)-11-methyl-10,13-dioxo-9-azatricyclo[13.3.1.12,6]icosa-1(18),2,4,6(20),15(19),16-hexaen-14-yl]-2-[2-[4-(4-butylphenyl)phenyl]-2-oxoethyl]-N-methylpentanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C52H63N7O7
assistant