Studies on the Mode of Action of Dipterex

To elucidate the reason of low mammalian toxicity of Dipterex, decomposition of this compound by rabbit tissue was investigated. Though splitting of P-C linkage was not confirmed, two glucuronides, presumably derived from the metabolite (s) of Dipterex, were isolated from the urine. Molar ratio of phosphorus and glucuronic acid in them are both estimated as 1 : 1, and they are observed to differ from trichloroethyl glucuronide. The rapid detoxification might be ascribed to the capacity of glucuronide formation as well as the enzymatic hydrolysis of DDVP, the active ingredient of Dipterex.