Using O=CCC(F)(F)F, O=c1c2ccc(C#Cc3ccccn3)cc2nc2n1CCNCC2 to produce O=c1c2ccc(C#Cc3ccccn3)cc2nc2n1CCN(CCC(F)(F)F)CC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.