4-(Hydroxymethylphosphinyl)-L-2-aminobutanoyl-L-alanyl-L-leucine 92567-89-0 L-Leucine, 4-(hydroxymethylphosphinyl)-L-2-aminobutanoyl-L-alanyl- L-Leucine, gamma-(hydroxymethylphosphinyl)-L-alpha-aminobutyryl-L-alanyl- Phosalacine