Using CSC(=N)NC(=O)OC(C)(C)C, O=C(O)c1cc2c(s1)-c1ccc(Br)cc1OCC2 to produce CSC(=NC(=O)c1cc2c(s1)-c1ccc(Br)cc1OCC2)NC(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.