You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule ethyl 3-(15,17-dihydroxy-12-methyl-7-oxahexacyclo[9.7.0.02,8.03,5.06,8.012,17]octadecan-6-yl)prop-2-ynoate ?
user
C23H30O5
assistant