You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(1R)-1-[(4R,5R)-5-ethyl-2-methoxy-2,4-dimethyl-1,3-dioxolan-4-yl]propyl] (2R,3S,4S,5R,6R,8R)-3-[(2R,4R,5S,6S)-5-acetyloxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-9-(dimethylamino)-5-[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-6-hydroxy-2,4,6,8-tetramethylnonanoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C44H82N2O14
assistant