You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(3R,5R,8R,9S,10S,12S,13R,14S,17R)-12-hydroxy-10,13-dimethyl-17-[(2R)-5-oxo-5-(prop-2-ynylamino)pentan-2-yl]-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl] 2-bromoacetate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C29H44BrNO4
assistant