Using Cc1cc(-c2cn(CCO)c(C3CCN(C(=O)OC(C)(C)C)CC3)n2)ccc1F to produce Cc1cc(-c2cn(CCO)c(C3CCNCC3)n2)ccc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.