Using CI, CC(C)(C)OC(=O)NCC1CCC(C(=O)O)CC1 to produce CN(C[C@H]1CC[C@H](C(=O)O)CC1)C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.