You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[[1-(5,6-dihydro-4H-cyclopenta[b]thiophene-2-carbonylamino)cyclopropyl]methyl]-N-methylspiro[2,3-dihydrochromene-4,2'-cyclopropane]-1'-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H28N2O3S
assistant