Using O=Cc1cnc2c(NCCCO)nc3cc(C(F)(F)F)ccc3n12 to produce OCCCNc1nc2cc(C(F)(F)F)ccc2n2c(CO)cnc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.