You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(3R)-3-[3-[3-(2-fluoro-5-methoxyphenyl)-1,2-oxazole-5-carbonyl]oxyphenyl]-3-hydroxypropanoic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H16FNO7
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