Using O=C(O)C(F)(F)F, CCOC(=O)c1ccc2nc(-c3ccc(N4CCNCC4)nc3)sc2c1 to produce CCOC(=O)c1ccc2nc(-c3ccc(N4CCN(C)CC4)nc3)sc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.