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 2-[4-[2-(dimethylamino)ethoxy]phenyl]-4-[(4-methyl-1H-indol-5-yl)amino]thieno[2,3-b]pyridine-5-carbonitrile .
user
C27H25N5OS
assistant