You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 5-[(11S,13S,17S)-17-[tert-butyl(dimethyl)silyl]oxy-8-ethenyl-3-methoxy-13-methyl-7,9,11,12,14,15,16,17-octahydro-6H-cyclopenta[a]phenanthren-11-yl]pentanoic acid by IUPAC nomenclature, provide its molecular formula.
user
C32H50O4Si
assistant