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 2-[[(4R)-3-cyano-7,7-dimethyl-5-oxo-4-thiophen-2-yl-1,4,6,8-tetrahydroquinolin-2-yl]sulfanyl]acetamide using the IUPAC nomenclature.
user
C18H19N3O2S2
assistant