Using Cc1c(-c2cccnc2)[nH]c2ccc(Cl)cc12, C[Si](C)(C)OCCCl to produce Cc1c(-c2cccnc2)n(CCO)c2ccc(Cl)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.