You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(3S,8S,9S,10R,13S,14S,17R)-10,13-dimethyl-17-pyridin-4-yl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl] acetate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H35NO2
assistant