You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 3-[5,7-dimethyl-2-(trifluoromethyl)-[1,2,4]triazolo[1,5-a]pyrimidin-6-yl]-N-(6-ethyl-1,3-benzothiazol-2-yl)propanamide .
user
C20H19F3N6OS
assistant