You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 1-(3-anilinopyrrolidin-1-yl)-2-(2-methylthieno[2,3-e][1,3]benzothiazol-5-yl)oxyethanone is given. What is its corresponding molecular formula?
user
C22H21N3O2S2
assistant