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-[acetyl(ethyl)amino]-1,3-thiazol-4-yl]methyl 2-[(1,1-dioxo-1,2-benzothiazol-3-ylidene)amino]propanoate .
user
C18H20N4O5S2
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