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 (16R,17R)-11,17-dihydroxy-10,13,16-trimethyl-N-(1-methylbenzimidazol-2-yl)-3-oxo-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-17-carboxamide .
user
C29H35N3O4
assistant