You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 3-[(5R)-5-fluoro-3,4-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-N-[(4-methoxyphenyl)methyl]thiophene-2-carboxamide into molecular formula.
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C19H22FNO7S
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