Using CSc1sc(C(=N)NC(=O)OC(C)(C)C)cc1S(=O)(=O)c1cccc(-c2c(C)cc(O)cc2C)c1, CC(C)(C)OC(=O)CBr to produce CSc1sc(C(=N)NC(=O)OC(C)(C)C)cc1S(=O)(=O)c1cccc(-c2c(C)cc(OCC(=O)OC(C)(C)C)cc2C)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.