You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[2-[7-[3-(aminomethyl)-2-chlorophenyl]-1-benzofuran-5-yl]-4-methyl-2,3-dihydro-1,4-benzoxazin-8-yl]acetic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H23ClN2O4
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