JAK2-IN-4 is a selective JAK2/JAK3 inhibitor, with IC50 values of 0.7 nM and 23.2 nM for JAK2 and JAK3, respectively.

JAK2/FLT3-IN-1 (TFA) is an orally active dual inhibitor of JAK2/FLT3 that exhibits anticancer effects, acting on JAK2 (IC50: 0.7 nM), FLT3 (IC50: 4 nM), JAK1 (IC50: 26 nM) and JAK3 (IC50: 39 nM).

LY2784544(Gandotinib (LY2784544)) is a potent JAK2 inhibitor (IC50: 3 nM), effective in JAK2V617F(Ki: 0.245 nM). The selectivity is higher 8- and 20-fold than JAK1 and JAK3.

JAK1-IN-4 is a selective JAK1 inhibitor (IC50s: 85 nM, 12.8 μM and >30 μM for JAK1, JAK2, and JAK3, respectively). JAK1-IN-4 inhibits STAT3 phosphorylation in NCI-H 1975 cells (IC50, 227 nM).

LCC-12, a derivative of the biguanide metformin, acts as a copper (II) chelator. It efficiently forms a monomeric bond with copper (II) and at 20 µM, it mitigates hydrogen peroxide-induced oxidation from NADH to NAD+. At a concentration of 10 µM, LCC-12 significantly reduces the secretion of cytokines IL-1β, IL-2, IL-6, IL-8, and TNF-α, along with the downregulation of JAK2, STAT2, and IL-1 receptor-associated kinase 4 (IRAK4) in primary human cytokine-activated monocyte-derived macrophages (MDMs). Additionally, it decreases the presence of CD80+ and CD86+ within these macrophages at 10 µM. When administered at 0.3 mg/kg per day, LCC-12 enhances survival rates in mouse models exposed to sepsis, triggered either by lipopolysaccharide (LPS) or cecal ligation and puncture.

TAS05567 is a potent, highly selective, and ATP-competitive Syk inhibitor (IC50: 0.37 nM). TAS05567 only shows >70% inhibition of Syk and 4 other kinases (FLT3, JAK2, KDR, and RET with IC50s of 10 nM, 4.8 nM, 600 nM, and 29 nM, respectively) in a panel of 192 kinases.

SJ1008030 (compound 8) formic is a selective JAK2 degrader within the PROTAC class, demonstrating efficacy in inhibiting MHH-CALL-4 leukemia cell growth with an IC50 value of 5.4 nM. It is potentially applicable for leukemia research [1].

JAK2/FLT3-IN-1 has anti-cancer activity. JAK2/FLT3-IN-1 is a potent and orally effective dual JAK2/FLT3 (Janus kinase 2/ FMS-like tyrosine kinase 3) inhibitor with IC50 values of 0.7 nM, 4 nM, 26 nM and 39 nM for JAK2, FLT3, JAK1 and JAK3, respectively.

RET-IN-4 is a highly effective and specific RET inhibitor that can be administered orally. It demonstrates remarkable potency, with IC50 values of 1.29 nM, 1.97 nM, and 0.99 nM for inhibiting RET variants including RET (WT), RET (V804M), and RET (M918T), respectively. Moreover, RET-IN-4 exhibits superior selectivity towards kinases JAK2 (IC50 of 4.4 nM) and FLT3 (IC50 of 30.8 nM). Additionally, RET-IN-4 possesses pronounced anticancer properties.

Antiproliferative Agent-34 (Compound A14), a multitarget kinase inhibitor, demonstrates IC50 values of 177 nM for EGFR L858R/T790M and 1567 nM for EGFR WT. Additionally, it inhibits JAK2, ROS1, FLT3, FLT4, and PDGFRα with respective IC50s of 30.93 nM, 106.90 nM, 108.00 nM, 226.60 nM, and 42.53 nM. In normoxic conditions, it suppresses the proliferation of H1975 and HCC827 cells with IC50 values below 40 nM, while under hypoxic conditions, its potency increases 4-6 fold, yielding IC50 values less than 10 nM [1].