Using O=C1CCC(=O)N1Br, Cc1c(-c2ncco2)n(-c2ccccc2)c2cc(Cl)ccc2c1=O to produce O=c1c(CBr)c(-c2ncco2)n(-c2ccccc2)c2cc(Cl)ccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.