Using COc1ccc(-c2nn3c(-c4cnc(N5CCN(C(=O)OC(C)(C)C)CC5)nc4)cnc3s2)cc1OC to produce COc1ccc(-c2nn3c(-c4cnc(N5CCNCC5)nc4)cnc3s2)cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.