Using CC(C)(C)OC(=O)N1CCC(c2cccc3c2n(C(=O)OC(C)(C)C)c(=O)n3Cc2ccccc2)C1 to produce O=c1[nH]c2c(C3CCNC3)cccc2n1Cc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.