Using Cn1cc(-c2cc3c(cn2)cnn3-c2cccc(C3(O)CCCN(C(=O)OC(C)(C)C)CC3)n2)cn1 to produce Cn1cc(-c2cc3c(cn2)cnn3-c2cccc(C3(O)CCCNCC3)n2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.