- Discovery of allosteric potentiators for the metabotropic glutamate 2 receptor: synthesis and subtype selectivity of N-(4-(2-methoxyphenoxy)phenyl)-N-(2,2,2- trifluoroethylsulfonyl)pyrid-3-ylmethylamine. Johnson, M.P., Baez, M., Jagdmann, G.E., Britton, T.C., Large, T.H., Callagaro, D.O., Tizzano, J.P., Monn, J.A., Schoepp, D.D. J. Med. Chem. (2003)