Nec-3a is a Necrostatin-3 analogue. Nec-3a is a RIP1 inhibitor (IC50: 0.44 μM). Nec-3a inhibits the autophosphorylation activity of the RIP1 kinase domain[1].
RIPK-IN-4 is a potent and selective RIPK2 inhibitor with excellent oral bioavailability, and has an IC50 of 3 nM[1].
GSK-843 is a receptor-interacting protein kinase 3 (RIP3 or RIPK3) inhibitor, which binds RIP3 kinase domain with an IC50 of 8.6 nM, and inhibits kinase activity with an IC50 of 6.5 nM[1].
GSK-872 hydrochloride is a RIPK3 inhibitor, which binds RIP3 kinase domain with an IC50 of 1.8 nM, and inhibits kinase activity with an IC50 of 1.3 nM. GSK-872 hydrochloride decreases the RIPK3-mediated necroptosis and subsequent cytoplasmic translocation and expression of HMGB1, as well as ameliorates brain edema and neurological deficits in early brain injury[1][2][3].
RIP2 kinase inhibitor 1 (compound 11) is a potent and selective receptor interacting protein 2 (RIP2) kinase inhibitor with an IC50 of 0.03 μM for RIP2 FP. RIP2 kinase inhibitor 1 is used for autoinflammatory disorders[1].
Necroptosis-IN-1, an analog of Necrostatin-1 (HY-15760), is a potent necroptosi inhibitor. Necroptosis-IN-1 is a RIPK inhibitor[1].
RIPK3-IN-1 is a RIPK3 type II DFG-out inhibitor with an IC50 of 9.1 nM. RIPK3-IN-1 inhibits RIPK1 and RIPK2 with IC50s of 5.5 and >10 μM. RIPK3-IN-1 is also a c-Met kinase inhibitor with an IC50 of 1.1 μM[1].
RIPK2 inhibitor OD36 is a potent, specific, ATP-competitive inhibitor of RIPK2 with IC50 of 5.3 nM, inhibits Tyr and Ser/Thr-directed activities of RIPK2; inhibits both RIPK2 tyrosine autophosphorylation as well as downstream NF-κB and MAPK signaling induced by MDP, downregulates a panel of RIPK2 kinase-dependent genes; reduces cellular infiltration in an in vivo MDP-induced peritonitis model; also shows high affinity for cyclin G-associated kinase (GAK) with Ki of 3.8 nM.
RIPK1-IN-13 (Compound 8) is a potent inhibitor of RIPK1 with an IC50 value of 1139 nM. RIPK1-IN-13 blocks the activation of the necroptosis pathway via the inhibition of RIPK1. RIPK1-IN-13 has the potential for the research of inflammation diseases[1].
HTH-01-091 is a potent and selective, cell-permeable, ATP-competitive MELK inhibitor with biochemical IC50 of 10.5 nM; displays no significant activity for PIK3CA, mTOR, GSK3A and CDK7 (IC50>600 nM); exhibits substantially improved kinome selectivity in comparison with OTSSP167; induces MELK degradation, but demonstrates poor antiproliferative effects in basal-like breast cancer cell lines.
RIP2 Kinase Inhibitor 4 is a potent and selective RIPK2 PROTAC. RIP2 Kinase Inhibitor 4 effectively degrades RIPK2 (pIC50 of 8) and inhibits the release of related TNF-α[1].
HS-1371 is a potent and ATP-competitive RIP3 inhibitor with an IC50 of 20.8 nM[1].
RI-962 is a potent and selective receptor-interacting protein kinase 1 (RIPK1) inhibitor. RI-962 inhibits RIPK1 with an IC50 value of 35.0 nM. RI-962 can be used for the research of nervous system diseases and inflammatory diseases[1].
RIPK1-IN-3 (Example 38), a RIPK1 inhibitor, extracted from patent WO2018148626A1, possesses anti-inflammatory proprieties[1].
RIPK3-IN-4 (Compound 42) is a RIPK3 inhibitor. RIPK3-IN-4 inhibits HK-2 cell damage, necroptosis and inflammatory responses. RIPK3-IN-4 reduces Cisplatin (HY-17394)- and I/R-induced kidney damage, inflammatory response and necroptosis in acute kidney injury[1].
PK68 is a potent and selective type II inhibitor of receptor-interacting kinase 1 (RIPK1) with an IC50 of ~90 nM, displays inhibition of RIPK1-dependent necroptosis. PK68 powerfully ameliorates TNF-induced systemic inflammatory response syndrome, and with great potential for use in the treatment of inflammatory disorders and cancer metastasis[1].
RIPK1-IN-7 is a potent and selective receptor-interacting protein kinase 1 (RIPK1) inhibitor with a Kd of 4 nM and an enzymatic IC50 of 11 nM. RIPK1-IN-7 exhibits excellent antimetastasis activity in the experimental B16 melanoma lung metastasis model[1].
RIP2 kinase inhibitor 1 is a receptor interacting protein-2 (RIP2) kinase inhibitor extracted from patent WO/2014043446 A1, compound example 1.
RIP2 kinase inhibitor 2 is a receptor interacting protein-2 (RIP2) kinase inhibitor extracted from patent WO/2014043437 A1, compound example 9.
RIPA-56 is a highly potent, selective, and metabolically stable inhibitor of receptor-interacting protein 1 (RIP1) with an IC50 of 13 nM.
GSK2593074A (GSK’074) is a necroptosis inhibitor with dual targeting ability to both RIP1 and RIP3[1].
TP-030-1 is an inhibitor of RIPK1. TP-030-1 inhibits hRIPK1 with a Ki value of 3.9 nM and inhibits mRIPK1 with an IC50 value of 4.2 μM. TP-030-1 can be used for the research of inflammatory diseases and neurodegenerative diseases[1].
RIPK1-IN-16 is an orally active and potent inhibitor of RIPK1. RIPK1-IN-16 inhibits excessive inflammation by blocking RIPK1-mediated necroptosis in vivo. RIPK1-IN-16 protects mouse from TNF-induced systemic inflammatory response syndrome and sepsis[1].
RIPK1-IN-8 (example 16), an aminoimidazopyridine, is a potent and selective RIPK1 inhibitor with an IC50 of 4 nM. RIPK1-IN-8 has the potential for inflammatory diseases research[1].
cRIPGBM(chloride), an orally active, proapoptotic derivative. cRIPGBM can be generated from glioblastoma multiforme (GBM) cancer stem cells (CSCs). cRIPGBM(chloride) targets to receptor-interacting protein kinase 2 (RIPK2) to induce caspase 1-dependent apoptosis. cRIPGBM(chloride) suppresses the formation of RIPK2/TAK1 (prosurvival complex), and increases the formation of RIPK2/caspase 1 (proapoptotic complex). cRIPGBM(chloride) exerts potent anti-tumor activity in vivo in animal models[1].
KWCN-41 is a selective and efficient inhibitor of RIPK1 kinase with an IC50 value of 88 nM. KWCN-41 specifically inhibits cell necrosis but does not inhibit apoptosis. KWCN-41 also has anti-inflammatory effects[1].
Necrostatin-1 is a potent, selective and cell-permeable necroptosis inhibitor with an EC50 of 490 nM in Jurkat cells. It acts by inhibiting the death domain kinase RIP (RIP1) in the necroptosis pathway.