Using CC(C)(C)OC(=O)N1CC[C@H](Oc2ccc3c(c2)C(=O)c2ccccc2-3)C1 to produce O=C1c2ccccc2-c2ccc(O[C@H]3CCNC3)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.