You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1R,9S,12S,13R,14S,17R,18E,21S,23S,24R,25S,27R)-1,14-dihydroxy-23,25-dimethoxy-13,19,21,27-tetramethyl-17-prop-2-enyl-12-[(E)-1-pyridin-4-ylprop-1-en-2-yl]-11,28-dioxa-4-azatricyclo[22.3.1.04,9]octacos-18-ene-2,3,10,16-tetrone The above is the IUPAC name of a molecule. Write its molecular formula.
user
C42H60N2O10
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