Using COc1cc2cc3c(=O)[nH]c(C(=O)NCCOc4ccccc4)nc3nc2cc1OC, O=C(O)CBr to produce COc1cc2cc3c(=O)n(CC(=O)O)c(C(=O)NCCOc4ccccc4)nc3nc2cc1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.