Using CS(=O)(=O)OC[C@H]1CN2CCOC[C@H]2CO1, COc1cc2c(Nc3ccc(Br)c(Cl)c3F)ncnc2cc1O to produce COc1cc2c(Nc3ccc(Br)c(Cl)c3F)ncnc2cc1OC[C@H]1CN2CCOC[C@H]2CO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.