Zandelisib (ME-401) is a phosphatidylinositol 3-kinase (PI3K) inhibitor extracted from patent WO2019183226 A1, Compound Example 1. Zandelisib selectively inhibits p110δ with an IC50 of 3.5 nM. Zandelisib functions as an antineoplastic[1][2].
Zandelisib inhibits PI3Ks with IC50s of 4, 976 nM, 605 nM, 817 nM and 3.5 nM for p110α, p110β, p110γ and p110δ, respectivey[1].
[1]. Daniel P. Gold, et al. Combination therapy. WO2019183226A1.
[2]. David Brown, et al. (sulfinyl and sulfonyl benzimidazolyl) pyrimidines and triazines, pharmaceutical compositions thereof, and their use for treating proliferative diseases. WO2014055647A1.