Using O=C(c1ccc2nc(-c3ccc(C4OCCCO4)cc3F)sc2c1)c1ccccn1, [Li]CCCC to produce C=C(c1ccc2nc(-c3ccc(C4OCCCO4)cc3F)sc2c1)c1ccccn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.