Using CC(=O)CN1CCN(C(=O)c2ccc3c(c2)CCC(=O)N3)CC1 to produce CC(O)CN1CCN(C(=O)c2ccc3c(c2)CCC(=O)N3)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.