Using COc1cc(C2=C(c3cn(CCCO)c4ccccc34)C(=O)NC2=O)c2occc2c1, BrC(Br)(Br)Br to produce COc1cc(C2=C(c3cn(CCCBr)c4ccccc34)C(=O)NC2=O)c2occc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.