Using COc1ccc(Br)c(C(=O)N2CCN(C(=O)CNC(=O)c3ccc(-c4ccccc4)cc3)CC2)c1 to produce O=C(NCC(=O)N1CCN(C(=O)c2cc(O)ccc2Br)CC1)c1ccc(-c2ccccc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.