ML303 is a pyrazolopyridine influenza virus nonstructural protein 1 (NS1) antagonist (IC90 = 155 nM), with an EC50 of 0.7 μM for Influenza A virus H1N1[1].
ML303 (20 μM, 6 h) treatment restore IFN-β mRNA levels in MDCK cells[1].
[1]. Patnaik S, et al. Identification, design and synthesis of novel pyrazolopyridine influenza virus nonstructural protein 1 antagonists. Bioorg Med Chem Lett. 2019 May 1;29(9):1113-1119.
















