You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(2R,3R,4S,5S,6S)-2-[[(1aR,4R,4aS,7S,7aR,7bS)-1,1,4,7-tetramethyl-2,3,4a,5,6,7,7a,7b-octahydro-1aH-cyclopropa[e]azulen-4-yl]oxy]-4,5-dihydroxy-6-methyloxan-3-yl] (Z)-2-methylbut-2-enoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C26H42O6
assistant