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 N-[(4-chlorophenyl)methyl]-2-[[2-(ethylamino)-2-phenylethoxy]methyl]-7-methyl-4-oxothieno[2,3-b]pyridine-5-carboxamide .
user
C27H28ClN3O3S
assistant