4MP8:
reference: Synthesis of L-2,3-diaminopropionic Acid, a siderophore and antibiotic precursor., Kobylarz MJ, Grigg JC, Takayama SJ, Rai DK, Heinrichs DE, Murphy ME, Chem Biol. 2014 Mar 20;21(3):379-88. doi: 10.1016/j.chembiol.2013.12.011. Epub, 2014 Jan 30. PMID: 24485762

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).