You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance N-ethyl-N-phenyl-2-[[4-(trifluoromethyl)-5,6,7,8-tetrahydroquinazolin-2-yl]sulfanyl]acetamide .
user
C19H20F3N3OS
assistant