3G0X:
reference: Structure-based design, synthesis, and characterization of inhibitors of human and Plasmodium falciparum dihydroorotate dehydrogenases., Davies M, Heikkila T, McConkey GA, Fishwick CW, Parsons MR, Johnson AP, J Med Chem. 2009 May 14;52(9):2683-93. PMID: 19351152

This OCA Structure page
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