Using N#Cc1cnc(Nc2cc(N3CCOCC3)c(Cl)cn2)cn1, OB(O)c1ccccc1 to produce N#Cc1cnc(Nc2cc(N3CCOCC3)c(-c3ccccc3)cn2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.