Using CC(C)(C)OC(=O)N1CCNCC1, O=C(O)c1cccc2ccc(OCc3ccccc3)cc12 to produce CC(C)(C)OC(=O)N1CCN(C(=O)c2cccc3ccc(OCc4ccccc4)cc23)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.