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 methyl N-[2-[2-[17-[2-[1-[butan-2-yl(3-methylpentanoyl)amino]ethyl]-1H-imidazol-5-yl]-21-oxa-5,7-diazapentacyclo[11.8.0.03,11.04,8.014,19]henicosa-1(13),2,4(8),5,9,11,14(19),15,17-nonaen-6-yl]-5-(oxan-3-ylmethyl)pyrrolidin-1-yl]-2-oxoethyl]carbamate .
user
C47H59N7O6
assistant