You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by 1-[(2R)-2-[(3R,5R,8R,10S,13S,17S)-3,17-dihydroxy-3-(methoxymethyl)-13-methyl-1,2,4,5,6,7,8,9,10,11,12,14,15,16-tetradecahydrocyclopenta[a]phenanthren-17-yl]propyl]pyrazole-4-carbonitrile ?
user
C27H41N3O3
assistant