Using O=Cc1ccccc1, Nc1n[nH]c2ccc(-c3nnn(Cc4ccccc4)c3C3CC3)cc12 to produce c1ccc(CNc2n[nH]c3ccc(-c4nnn(Cc5ccccc5)c4C4CC4)cc23)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.