Using CCCCCCI, Cc1nsnc1C(=NOCc1cccc(NC(=O)OC(C)(C)C)n1)c1ccccc1 to produce CCCCCCNc1cccc(CON=C(c2ccccc2)c2nsnc2C)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.