You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1R,18R,20R,24S,27S)-24-tert-butyl-11-[2-(cyclopropylamino)ethoxy]-N-[(1R,2S)-2-ethenyl-1-[(1-methylcyclopropyl)sulfonylcarbamoyl]cyclopropyl]-22,25-dioxo-2,21-dioxa-4,23,26-triazapentacyclo[24.2.1.03,12.05,10.018,20]nonacosa-3,5,7,9,11-pentaene-27-carboxamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C44H60N6O9S
assistant