You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as N-(3-cyanothiophen-2-yl)-2-[(12-oxo-11-propyl-7-thia-9,11-diazatricyclo[6.4.0.02,6]dodeca-1(8),2(6),9-trien-10-yl)sulfanyl]acetamide using the IUPAC nomenclature.
user
C19H18N4O2S3
assistant