Using CS(=O)(=O)OC1CN(C(c2ccccc2)c2ccccc2)C1, CC(C)(C)OC(=O)N1CCNCC1 to produce CC(C)(C)OC(=O)N1CCN(C2CN(C(c3ccccc3)c3ccccc3)C2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.