Using CCN=C=O, CC(C)(C)c1ccccc1N1CCN(C(=O)C(=O)NC2CCNCC2)CC1 to produce CCNC(=O)N1CCC(NC(=O)C(=O)N2CCN(c3ccccc3C(C)(C)C)CC2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.