Using CC(C)(C)OC(=O)N1CCN(c2nccc3ccc(Br)cc23)CC1, CC(C)(C)c1ccccc1S to produce CC(C)(C)OC(=O)N1CCN(c2nccc3ccc(Sc4ccccc4C(C)(C)C)cc23)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.