Using CON=C(C(=O)NC1C(=O)N2C(C(=O)[O-])=CCS[C@H]12)c1csc(N)n1, CC(C)(C)OC(=O)CBr to produce CON=C(C(=O)NC1C(=O)N2C(C(=O)OCC(=O)OC(C)(C)C)=CCS[C@H]12)c1csc(N)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.