You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(6E)-6-[[4-[2-[4-[(2S)-butan-2-yl]phenoxy]ethoxy]-3,5-dimethoxyphenyl]methylidene]-5-imino-2-(3-methylphenyl)-[1,3,4]thiadiazolo[3,2-a]pyrimidin-7-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C33H34N4O5S
assistant