You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [2-[(3-cyano-5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophen-2-yl)amino]-2-oxoethyl] 2-(3,5-dimethylpyrazol-1-yl)acetate into its molecular formula.
user
C19H22N4O3S
assistant