Using CCOC(=O)CBr, Oc1cccc(CC2CCCC=C2c2nc(-c3ccccc3)c(-c3ccccc3)o2)c1 to produce CCOC(=O)COc1cccc(CC2CCCC=C2c2nc(-c3ccccc3)c(-c3ccccc3)o2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.