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XL019

  Cat. No.:  DC5022   Featured
Chemical Structure
945755-56-6
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More than 5000 active chemicals with high quality for research!
Field of application
XL019 is an orally bioavailable inhibitor of Janus-associated kinase 2 (JAK2) with potential antineoplastic activity.
Chemicals PropertiesBiological activity COA & MSDSRelated productsDatasheet
Cas No.: 945755-56-6
Chemical Name: XL019; XL-019; XL 019.
Synonyms: XL019; XL-019; XL 019.
SMILES: C1C[C@H](NC1)C(=O)NC2=CC=C(C=C2)C3=NC(=NC=C3)NC4=CC=C(C=C4)N5CCOCC5
Formula: C25H28N6O2
M.Wt: 444.53
Sotrage: 2 years -20°C Powder, 2 weeks 4°C in DMSO, 6 months -80°C in DMSO
Description: XL019 is a potent and selective JAK2 inhibitor with IC50 of 2.2 nM, 100 fold selectivity over JAK1; shows good biochemical and cellular potency against JAK2 with good selectivity against the Janus Kinase family as well as a broad kinase panel.XL019 was selected as a clinical candidate and advanced into human clinical trials where it was evaluated in patients with primary myelofibrosis, post-polycythemia vera, or post-essential thrombocythemia myelofibrosis.
In Vivo: XL019 was administered orally to mice bearing HEL92.1.7 tumors and inhibition of STAT phosphorylation was measured after 4 h. A significant inhibition of downstream markers pSTAT1 and pSTAT3 is observed at 30, 100, and 300 mg/kg resulting in an ED50 of 42 mg/kg (pSTAT1) and 210 mg/kg (pSTAT3). XL019 had a superior pharmacodynamic profile and thus was evaluated in an efficacy experiment measuring growth inhibition of HEL.92.1.7 xenograft tumors in mice. Derivative XL019 demonstrated 60% and 70% inhibition when dosed orally at 200 mg/kg and 300 mg/kg respectively twice a day for 14 days. Harvested tumors were also subjected to immunohistochemical analysis of microvessel density (CD31), proliferation (Ki67) and apoptosis (TUNEL). Dosing at 300 mg/kg bid provided an 11.3-fold increase in apoptosis relative to vehicle control [1].
In Vitro: Analogue XL019 was also evaluated against a selectivity panel of 118 kinases. Targets for which XL019 exhibited IC50 <1000 nM are displayed. Overall XL019 is a highly selective JAK2 inhibitor displaying >50-fold selectivity against all kinases tested including JAK family members JAK1 and TYK2. Further in vitro evaluation of XL019 revealed that it demonstrated a desirable CYP (1A2, 2C9, 2D6, 3A4 20 μM), hERG (16 μM), and P-glycoprotein inhibition (>20 μM) profile [1].
MSDS
COA
LOT NO. DOWNLOAD
2018-0101
2018-0101
Cat. No. Product name Field of application
DC72649 Nimucitinib Nimucitinib is a Janus kinase (JAK) inhibitor.
DC70265 BMS-986202 BMS-986202 (BMS 986202) is potent, selective Tyk2 inhibitor that binds to Tyk2 JH2 domain with IC50 of 0.19 nM, Ki of 0.02 nM, >10,000-fold over 273 kinases and pseudokinases; BMS-986202 demonstrated cellular activity (IL-23 IC50=12 nM) in IL-23 stimulated reporter assay (in Kit225 T cells). BMS-986202 also binds Jak1 JH2 with an IC50 of 7.8 nM, but this enzymatic binding did not lead to any functional activities, as BMS-986202 displayed an activity (IC50) of greater than 12.5 μM in the IL-2 stimulated Jak1/3-dependent cellular assay. BMS-986202 showed in vivo efficacy in mouse models of IL-23-driven acanthosis, anti-CD40-induced colitis, and spontaneous lupus.
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DC5022 XL019 XL019 is an orally bioavailable inhibitor of Janus-associated kinase 2 (JAK2) with potential antineoplastic activity.
DC8080 WHI-P258 WHI-P258 is a negative control for JAK3 inhibitors.
DC7581 WHI-P154 WHI-P154 is a potent JAK3 inhibitor with IC50 of 1.8 μM, no activity against JAK1 or JAK2, also inhibits EGFR, Src, Abl, VEGFR and MAPK, prevents Stat3, but not Stat5 phosphorylation.
DC10431 Upadacitinib Upadacitinib (ABT-494) is a potent and selective Janus kinase (JAK) 1 inhibitor being developed for the treatment of several autoimmune disorders with an IC50 of 43 nM.
DC5165 Tofacitinib (CP-690550) Citrate Tofacitinib is a novel inhibitor of JAK3 with IC50 of 1 nM, 20- to 100-fold less potent versus JAK2 and JAK1. Phase 3.
DC8736 Tofacitinib Tofacitinib is a novel inhibitor of JAK3 with IC50 of 1 nM, 20- to 100-fold less potent versus JAK2 and JAK1. Phase 3.
DC7318 TG101348(Fedratinib) TG-101348 (SAR302503) is a selective inhibitor of JAK2 with IC50 of 3 nM, 35- and 334-fold more selective for JAK2 versus JAK1 and JAK3, TG-101348 also inhibit BRD4 with IC50 of 340 nM.
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