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-[5-acetyl-2-(ethylamino)phenyl]imino-5-(3-methyl-1,3-benzothiazol-2-ylidene)-3-(pyridin-3-ylmethyl)-1,3-thiazolidin-4-one .
user
C27H25N5O2S2
assistant