You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 3-(9H-fluoren-9-ylmethoxycarbonylamino)-4-[methyl-[(2-methylfuran-3-yl)methyl]amino]-4-oxobutanoic acid into its molecular formula.
user
C26H26N2O6
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