Using CN(Cc1nc2cc(Cl)c(Cl)cc2[nH]1)C(=O)Cn1c(=O)oc2ccc(Cl)cc21, COCOCCBr to produce COCOCCn1c(CN(C)C(=O)Cn2c(=O)oc3ccc(Cl)cc32)nc2cc(Cl)c(Cl)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.