You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-(cyclohexanecarbonylamino)-N-(propan-2-ylideneamino)-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-3-carboxamide into its molecular formula.
user
C20H29N3O2S
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