Fosmanogepix

**Semantic type:** Organic Chemical|Pharmacologic Substance

**Definition:** An orally available small molecule inhibitor of the Gwt1 fungal enzyme with potential antifungal activity. Upon administration, fosmanogepix, a N-phosphonooxymethyl prodrug, is rapidly and completely metabolized by systemic alkaline phosphatases to its active moiety, APX001A (E1210). The active prodrug targets Gwt1, a highly conserved inositol acylase which catalyzes an essential step in the glycosylphosphatidylinositol (GPI)-anchor biosynthesis pathway. Inhibition of Gwt1 prevents localization of cell wall mannoproteins, which compromises cell wall integrity, biofilm formation, germ tube formation, and fungal growth.

**Synonyms:** - (12-Amino-6-oxa-1(3),7(2)-dipyridina-2(5,3)-(1,2)oxazola- 4(1,4)-benzenaheptaphan-11-ium-11-yl)methyl hydrogen phosphate - APX-001 - APX001 - E1211 - FOSMANOGEPIX - Prodrug APX001 - Pyridinium, 2-amino-1-((phosphonooxy)methyl)-3-(3-((4-((2-pyridinyloxy)methyl)phenyl)methyl)-5-isoxazolyl)-, inner salt