[Investigations of carbromal metabolism (author's transl)]

Erythro-2-Brom-2-ethyl-3-hydroxybutyramide has been isolated from the urines of patients with Carbromal intoxications as well as from the urine of rat, mouse and dog treated with either Carbromal or with 2-Brom-2-ethyl-acetamide. The identification of the excreted and synthetized metabolite was carried out by means of IR, Mass and NMR spectroscopy. Along with the erythro-2-Brom-2-ethyl-3-hydroxybutyramide one other bromine containing compound was isolated after Carbromal application only, its mass spectrum and rel. RF values having the same characteristics as the synthetized erythro-2-Brom-2-ethyl-3-hydroxybutyrylcarbamide. However, the purification of this metabolite so far has not been successful.