Using OCC#Cc1ccc2c(-c3ccc(C(F)(F)F)cc3)nsc2c1 to produce OCCCc1ccc2c(-c3ccc(C(F)(F)F)cc3)nsc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.