Using O=C1CCC(=O)N1Br, CC(C)c1csc2c1O[C@@H](C)CN(C(=O)OC(C)(C)C)C2 to produce CC(C)c1c(Br)sc2c1O[C@@H](C)CN(C(=O)OC(C)(C)C)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.