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-amino-6-[1-(methylideneamino)penta-1,3-dien-3-yl]-N-[4-(trifluoromethoxy)phenyl]thieno[2,3-b]pyridine-2-carboxamide .
user
C21H17F3N4O2S
assistant