Using CCCc1cc(CCC=O)n(C(C)(C)C)n1, c1ccc(N2CCNCC2)cc1 to produce CCCc1cc(CCCN2CCN(c3ccccc3)CC2)n(C(C)(C)C)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.