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 (8S,9S,10R,13R,14S,17R)-17-[(2S,5S)-5-ethyl-6-methylhepta-3,6-dien-2-yl]-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one .
user
C29H44O
assistant