Using COc1c(C(C)NC(=O)OC(C)(C)C)cc(Cl)c(C)c1Br, C=CC(=O)OC to produce COC(=O)/C=C/c1c(C)c(Cl)cc(C(C)NC(=O)OC(C)(C)C)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.