Using C1COCCN1, CC(C)n1nc(C=O)cc1C(=O)OC(C)(C)C to produce CC(C)n1nc(CN2CCOCC2)cc1C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.