Using O=c1n(-c2ccc(F)cc2)ccc2nc(COc3ccc(F)cc3)cn12 to produce O=C1N(c2ccc(F)cc2)CCc2nc(COc3ccc(F)cc3)cn21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.