Using CCOC(=O)C1(NC(=O)N2CCN(Cc3ccccc3)CC2)CCCCC1 to produce O=C(NC1(C(=O)O)CCCCC1)N1CCN(Cc2ccccc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.