Using CC(C)(C)O[K], O=CCC[C@H]1CN(c2ccc3c(c2)NC(=O)CO3)C(=O)O1 to produce C=CCCC1CN(c2ccc3c(c2)NC(=O)CO3)C(=O)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.