Using CCOC(=O)CBr, CC(C)c1nc2c(n1Cc1ccc(Cl)c(Cl)c1)C(O)CCCC2 to produce CCOC(=O)COC1CCCCc2nc(C(C)C)n(Cc3ccc(Cl)c(Cl)c3)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.