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 [5-[(17-heptan-2-yl-3-methoxy-10,13-dimethyl-1,2,4,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-yl)methyl]-2,3-bis(4-hydroxybutanoyloxy)oxan-4-yl] 4-hydroxybutanoate .
user
C45H74O11
assistant