You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 3-[(2S,3R,4S,5R)-2-[[(1R,4R,5R,6R,8R,10R,11R,12R,18S,21R)-8-[(1R)-1-acetyloxy-2-hydroxy-2-methylpropyl]-10,11-dihydroxy-4,6,12,17,17-pentamethyl-9-oxahexacyclo[11.9.0.01,21.04,12.05,10.016,21]docos-13-en-18-yl]oxy]-4,5-dihydroxyoxan-3-yl]oxy-3-oxopropanoic acid is given. What is its corresponding molecular formula?
user
C40H60O14
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