You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
11-[(8S,11S,13S,14S,17S)-17-hydroxy-13-methyl-3-oxo-2,6,7,8,11,12,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-11-yl]-N-methyl-N-propan-2-ylundecanamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C33H53NO3
assistant