Using CCOC(=O)c1c(C)nn2c(-c3ccc(C)cc3C)c(C)oc12 to produce Cc1ccc(-c2c(C)oc3c(C(=O)O)c(C)nn23)c(C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.