Using Cc1nnc(-c2c(C)csc2NC(=O)Cc2ccc(I)cc2)[nH]1, OB(O)c1ccncc1 to produce Cc1nnc(-c2c(C)csc2NC(=O)Cc2ccc(-c3ccncc3)cc2)[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.