You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(1S,2S)-1-cyclopentyl-2-phenoxypropyl] (2R)-4-[3-(acetyloxymethoxy)-4-methoxypyridin-2-yl]-2-methyl-4-oxobutanoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H35NO8
assistant