You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[6-[(2R,6S)-2,6-dimethylmorpholin-4-yl]pyrimidin-4-yl]-[2-methyl-5-[(3R)-oxolan-3-yl]oxyphenyl]methanimine is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H28N4O3
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