Using Cc1ccc(-c2nc3c(nc2-c2ccc(C)cc2)N(CCCCCCC(=O)O)C(=O)CC3)cc1, CC(C)=O to produce Cc1ccc(-c2nc3c(nc2-c2ccc(C)cc2)N(CCCCCCC(=O)O)C(=O)C(C(C)(C)O)C3)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.