You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule [2-[[(3S,7S,8S,9S)-8-(3-chlorophenoxy)-9-methyl-7-(2-methylpropoxy)-2-oxo-1,5-dioxonan-3-yl]carbamoyl]-4-methoxypyridin-3-yl]oxymethyl 2-ethoxyacetate;N-[(3S,7S,8S,9S)-8-(3-chlorophenoxy)-9-methyl-7-(2-methylpropoxy)-2-oxo-1,5-dioxonan-3-yl]-3-hydroxy-4-methoxypyridine-2-carboxamide into molecular formula.
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C55H70Cl2N4O19
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