Using C=C(C)c1cnc(O[C@@H]2C[C@H]3CN(C(=O)OC(C)(C)C)CCN3C2)cn1 to produce C=C(C)c1cnc(O[C@@H]2C[C@H]3CNCCN3C2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.