Using COC(=O)[C@@H](OC(C)(C)C)c1c(C)nc2sc3c(c2c1-c1ccc(Cl)cc1)CCCC3 to produce Cc1nc2sc3c(c2c(-c2ccc(Cl)cc2)c1[C@H](OC(C)(C)C)C(=O)O)CCCC3, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.