Using O=C([O-])[O-], CC(C)(C)OC(=O)N1CCN(c2ncc(C(=O)O)cc2Cl)CC1 to produce COC(=O)c1cnc(N2CCN(C(=O)OC(C)(C)C)CC2)c(Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.