Using CCOC(=O)C1CCN(Cc2ccc3cc(OC4CCCCC4)ccc3n2)CC1 to produce O=C(O)C1CCN(Cc2ccc3cc(OC4CCCCC4)ccc3n2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.