PI3Kδ-IN-15 (compound 6b) is a potent and selective inhibitor of PI3Kδ, exhibiting an IC50 of 0.5 nM for p110δ and demonstrating over 30-fold selectivity compared to PI3K isoforms γ, β, and α [1].

PI3Kγ Inhibitor 7 (compound 2) is a potent, orally active agent that selectively inhibits PI3Kγ with an IC50 of 3.42 nM and demonstrates antitumor activity [1]. It also exhibits varying inhibitory effects on other PI3K isoforms, with IC50 values of 4768 nM for PI3Kα, 878.1 nM for PI3Kβ, and 355.2 nM for PI3Kδ.

hSMG-1 inhibitor 11j is a pyrimidine derivative. hSMG-1 inhibitor 11j is a potent and selective inhibitor of hSMG-1, IC50 = 0.11 nM. hSMG-1 inhibitor 11j exhibits >455-fold selectivity for hSMG-1 over mTOR (IC50=50 nM), PI3Kα/γ (IC50=92/60 nM) and CDK1/CDK2 (IC50=32/7.1 μM). hSMG-1 inhibitor 11j can be used for the research of cancer.

Tenalisib (RP6530) (RP6530) is a potent and selective inhibitor of PI3Kδ and PI3Kγ(IC50 values of 25 and 33 nM, respectively.)

Monomethyl lithospermate (Lithospermic acid monomethyl ester) has potential antiviral activity, alleviating ischemic stroke injury in vivo in middle cerebral artery occlusion mice by activating PI5K/Akt signaling and protecting oxygen-glucose deprivation/reoxygenation-induced SHSY-3Y cells in vitro. Monomethyl lithospermate could improve the viability of SHSY-5Y cells, inhibit mitochondrial membrane potential (MMOP) collapse, and inhibit cell apoptosis. Monomethyl lithospermate also reduced the level of oxidative stress in the brain tissue of middle artery occlusion (MCAO) rats and improved nerve damage in ischemic stroke (IS) rats.