You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(2S,3R,4S,6R)-4-(dimethylamino)-2-[[(1R,2R,5R,7R,8R,9R,11R,12E,13S,14R)-2-ethyl-9-methoxy-1,5,7,9,11,13-hexamethyl-4,6,16-trioxo-12-(3-quinolin-6-ylprop-2-ynoxyimino)-3,15,17-trioxabicyclo[12.3.0]heptadecan-8-yl]oxy]-6-methyloxan-3-yl] acetate is the IUPAC name of a molecule. Please give its molecular formula.
user
C45H61N3O12
assistant