Using CSc1ccc(-n2nc(C(F)(F)F)cc2-c2ccc(OCCN)cc2)cc1, N#CO[Na] to produce CSc1ccc(-n2nc(C(F)(F)F)cc2-c2ccc(OCCNC(N)=O)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.