Using C=C(C)CNCC1(O)CCN(Cc2ccccc2)CC1, O=C([O-])O to produce CC(C)(C)OC(=O)N1CC(C)(C)OC2(CCN(Cc3ccccc3)CC2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.