You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3E,10S,13S)-3-[2-[5-[(dimethylamino)methyl]-1,3-oxazol-2-yl]ethoxyimino]-10,13-dimethyl-2,4,5,6,7,8,9,11,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-17-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H41N3O3
assistant