You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (8R,9S,11S,13S,14S,17S)-8-ethenyl-11-hexyl-13-methyl-7,9,11,12,14,15,16,17-octahydro-6H-cyclopenta[a]phenanthrene-3,17-diol .
user
C26H38O2
assistant