You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [(1R,2S,4S,5'R,6R,7S,9S,12S,13S,16S,18S)-5',7,9,13-tetramethyl-10-oxospiro[5-oxapentacyclo[10.8.0.02,9.04,8.013,18]icosane-6,2'-oxane]-16-yl] acetate into its molecular formula.
user
C29H44O5
assistant