Using CSc1nc(Cl)c2c(n1)CCN(C(=O)OC(C)(C)C)C2, Nc1ccc(Cl)cc1Cl to produce CSc1nc2c(c(Nc3ccc(Cl)cc3Cl)n1)CN(C(=O)OC(C)(C)C)CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.