Using CC(C)(C)OC(=O)N1CCN(CCN2c3ccccc3N(c3ccc(F)c(F)c3)S2(=O)=O)CC1 to produce O=S1(=O)N(CCN2CCNCC2)c2ccccc2N1c1ccc(F)c(F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.