Synthesis of analogs of the Gwt1 inhibitor manogepix (APX001A) and in vitro evaluation against Cryptococcus spp

Autor: Mili Kapoor, Quinlyn A. Soltow, Michael Trzoss, Molly K. Moloney, Jonathan A. Covel, Peter J. Webb, Karen Joy Shaw
Rok vydání: 2019
Předmět:
Zdroj: Bioorg Med Chem Lett
ISSN: 0960-894X
DOI: 10.1016/j.bmcl.2019.126713
Popis: Fosmanogepix (APX001) is a first-in-class prodrug molecule that is currently in Phase 2 clinical trials for invasive fungal infections. The active moiety manogepix (APX001A) inhibits the novel fungal protein Gwt1. Gwt1 catalyzes an early step in the GPI anchor biosynthesis pathway. Here we describe the synthesis and evaluation of 292 new and 24 previously described analogs that were synthesized using a series of advanced intermediates to allow for rapid analoging. Several compounds demonstrated significantly (8- to 32-fold) improved antifungal activity against both Cryptococcus neoformans and C. gattii as compared to manogepix. Further in vitro characterization identified three analogs with a similar preliminary safety and in vitro profile to manogepix and superior activity against Cryptococcus spp.
Databáze: OpenAIRE