You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2R)-1-[4-[2-(4-amino-6-chloro-2-methylpyrimidin-5-yl)ethyl]azepan-1-yl]-2-methyl-4-(2-methyl-1,3-oxazol-4-yl)butane-1,4-dione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H30ClN5O3
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