Using O=c1c2cc(Br)oc2ccn1-c1ccc2[nH]ncc2c1, COC(=O)CBr to produce COC(=O)Cn1ncc2cc(-n3ccc4oc(Br)cc4c3=O)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.