You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name 3-methoxy-N-[3-(2-methylimidazol-1-yl)propyl]-5,6-dihydro-4H-cyclopenta[b]thiophene-2-carboxamide ?
user
C16H21N3O2S
assistant