Using ClCCl, CC(C)n1ncnc1-c1cn2c(n1)-c1ccc([C@H]3CCN(C(=O)OC(C)(C)C)C[C@H]3O)cc1OCC2 to produce Cc1nc(-c2cn3c(n2)-c2ccc([C@H]4CCNC[C@H]4O)cc2OCC3)n(C(C)C)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.