Using COc1cc(C=C2NC(=O)CN(C(C)=O)C2=O)ccc1C(F)(F)F to produce COc1cc(CC2NC(=O)CNC2=O)ccc1C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.