Using CCOC(=O)CCCBr, Sc1ccc(C23CC4CC(CC(C4)C2)C3)cc1 to produce CCOC(=O)CCCSc1ccc(C23CC4CC(CC(C4)C2)C3)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.