Using COC(=O)C1CN(C(=O)OC(C)(C)C)CCN1, O=c1nc(Cl)ncn1Cc1ccc(Cl)cc1 to produce COC(=O)C1CN(C(=O)OC(C)(C)C)CCN1c1ncn(Cc2ccc(Cl)cc2)c(=O)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.