Using COc1cc(CCc2cnc3c(cc(-c4cn[nH]c4)n3S(=O)(=O)c3ccccc3)n2)cc(OC)c1, CC(C)(C)[Si](C)(C)OCCBr to produce COc1cc(CCc2cnc3[nH]c(-c4cnn(CCO)c4)cc3n2)cc(OC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.