Using CCCCCC, COC(=O)C1(CCNCCc2ccccc2)C(=O)CCc2ccc(OC)cc21 to produce COC(=O)C12CCN(Cc3ccccc3)C(Cc3ccc(OC)cc31)C2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.