You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 3-[[3-(4-methyl-1,3-thiazol-2-yl)-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl]carbamoyl]bicyclo[2.2.2]oct-2-ene-2-carboxylic acid ?
user
C21H22N2O3S2
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