Using COC(=O)NC(C(=O)N1CC2(CC1c1ncc(-c3ccc(Br)cc3)[nH]1)OCCO2)C(C)C to produce COC(=O)NC(C(=O)N1CC(=O)CC1c1ncc(-c2ccc(Br)cc2)[nH]1)C(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.