Using NCCN, CCCCC(=O)C(CC(C=O)N(C)C)(c1ccccc1)c1ccccc1 to produce CC(CC(c1ccccc1)(c1ccccc1)C(O)CCCCNCCN)N(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.