You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N,N-diethyl-6-pyrimidin-2-yl-4,5,7,8-tetrahydro-[1,3]thiazolo[4,5-d]azepine-2-carboxamide into its molecular formula.
user
C16H21N5OS
assistant