Using COC(=O)[C@@H](CCN1C(=O)c2ccccc2C1=O)Oc1c(Br)cc(-c2c(Br)ccc3sc4ccccc4c23)cc1Br to produce O=C(O)[C@@H](CCN1C(=O)c2ccccc2C1=O)Oc1c(Br)cc(-c2c(Br)ccc3sc4ccccc4c23)cc1Br, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.