Using COS(=O)(=O)OC, CC(C)(C)OC(=O)N1CCC(COCc2cc(C(F)(F)F)cc3cc[nH]c23)(c2ccccc2)CC1 to produce Cn1ccc2cc(C(F)(F)F)cc(COCC3(c4ccccc4)CCN(C(=O)OC(C)(C)C)CC3)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.