Using CCNC(=O)Nc1ccc(-c2nc3c(c(N4CCOCC4)n2)CCNC3)cc1, COCCBr to produce CCNC(=O)Nc1ccc(-c2nc3c(c(N4CCOCC4)n2)CCN(CCOC)C3)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.