Using CCOC(C)=O, CCOc1nc(Br)c(C=O)n1Cc1ccc(-c2ccccc2C(=O)OC(C)(C)C)cc1F to produce C=Cc1nc(OCC)n(Cc2ccc(-c3ccccc3C(=O)OC(C)(C)C)cc2F)c1C=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.