Using COc1ccc2c(=O)c(N3CCN(c4ccncc4)CC3)cn(Cc3ccccc3)c2c1 to produce O=c1c(N2CCN(c3ccncc3)CC2)cn(Cc2ccccc2)c2cc(O)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.