Using CN1CCc2c(c3cc(Cl)ccc3n2CC(=O)O)C1, CC(C)(C)OC(=O)N1CCNCC1 to produce CN1CCc2c(c3cc(Cl)ccc3n2CC(=O)N2CCN(C(=O)OC(C)(C)C)CC2)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.