You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[2-[[2-(cyclopentanecarbonyl)-4-methylphenyl]carbamoylamino]-1,3-thiazol-4-yl]-2-methylbutanoic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H27N3O4S
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