Using NC1(c2ccc(-c3nc4cc(O)ccn4c3-c3ccccc3)cc2)CCC1, COC(=O)CBr to produce COC(=O)COc1ccn2c(-c3ccccc3)c(-c3ccc(C4(N)CCC4)cc3)nc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.