Using CCOC(=O)Cc1nc(Cl)c2c(-c3ccccc3)csc2n1, COCC1CCNCC1 to produce COCC1CCN(c2nc(CC(=O)O)nc3scc(-c4ccccc4)c23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.