Using COC(=O)C[C@H](CC(=O)C=CCCc1ccc2c(n1)N(C(=O)OC(C)(C)C)CCCC2)c1cnc(OC)nc1 to produce COC(=O)C[C@H](CC(=O)CCCCc1ccc2c(n1)N(C(=O)OC(C)(C)C)CCCC2)c1cnc(OC)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.