Using CCc1nc2c(cnn2CC)c(NC2CCOCC2)c1CNC(=O)CCCC(=O)OC to produce CCc1nc2c(cnn2CC)c(NC2CCOCC2)c1CNC(=O)CCCC(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.