Using O, CC(C)(C)OC(=O)N1CCC(O)(C2(c3cc(Br)ccc3F)SCCCS2)CC1 to produce CC(C)(C)OC(=O)N1CCC(O)(C(=O)c2cc(Br)ccc2F)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.