Using CCO, Cc1ccc2c(c1)CN(C(COS(C)(=O)=O)c1ccccc1)C2=O to produce Cc1ccc2c(c1)CN(CC=Cc1ccccc1)C2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.