Using COc1cc2ncnc(Nc3cccc(Cl)c3F)c2cc1OC[C@H]1CCCN1, C=O to produce COc1cc2ncnc(Nc3cccc(Cl)c3F)c2cc1OC[C@H]1CCCN1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.