Using CCOC(=O)c1cc2c(nc1C(F)(F)F)CN(C(c1ccccc1)(c1ccccc1)c1ccccc1)CC2 to produce CCOC(=O)c1cc2c(nc1C(F)(F)F)CNCC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.