Five metabolites of diethyl 4-[(4-bromo-2-cyanophenyl) carbamoyl] benzylphosphonate (NO- 1886)(1) were synthesized to confirm their proposed structures. The metabolites (2-6) were found to be identical with the synthesized compounds. These metabolites were orally administrated to Triton WR-1339-induced hypertriglyceridemic rats, and the plasma levels of triglycerides were measured to estimate lipoprotein lipase activity. All the metabolites ...