You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (3R,5R,8R,9R,10S,13S,14S,17S)-17-(3-bromoprop-1-en-2-yl)-3-(2-chloroethynyl)-13-methyl-2,4,5,6,7,8,9,10,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol;(3R,5R,8R,9R,10S,13S,14S,17S)-17-(3-bromoprop-1-en-2-yl)-3-(difluoromethyl)-13-methyl-2,4,5,6,7,8,9,10,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol;(3R,5R,8R,9R,10S,13S,14S,17S)-3-(2-chloroethynyl)-17-(3-hydroxyprop-1-en-2-yl)-13-methyl-2,4,5,6,7,8,9,10,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol;(3R,5R,8R,9R,10S,13S,14S,17R)-3-(2-chloroethynyl)-13-methyl-17-prop-1-en-2-yl-2,4,5,6,7,8,9,10,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol;(3R,5R,8R,9R,10S,13S,14S,17S)-3-(difluoromethyl)-17-(3-hydroxyprop-1-en-2-yl)-13-methyl-2,4,5,6,7,8,9,10,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol by IUPAC nomenclature, provide its molecular formula.
user
C113H165Br2Cl3F4O7
assistant