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