Using CCOC(=O)CC1CNC(=O)c2cc(-c3cccc(Cl)c3)cn21 to produce O=C(O)CC1CNC(=O)c2cc(-c3cccc(Cl)c3)cn21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.