Using CCCCc1nc(-c2ccc(C(F)(F)F)cc2)sc1Cn1ccc2cc(O)cnc21, CC(C)(C)OC(=O)CBr to produce CCCCc1nc(-c2ccc(C(F)(F)F)cc2)sc1Cn1ccc2cc(OCC(=O)O)cnc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.