WARNING: This product is for research use only, not for human or veterinary use.
MedKoo CAT#: 205625
CAS#: 937273-04-6 (free base)
Description: SB1578, also known as ONX-0805, is a novel, orally bioavailable JAK2 inhibitor with specificity for JAK2 within the JAK family and also potent activity against FLT3 and c-Fms. SB1578 blocks the activation of these kinases and their downstream signaling in pertinent cells, leading to inhibition of pathological cellular responses. The biochemical and cellular activities of SB1578 translate into its high efficacy in two rodent models of arthritis.
MedKoo Cat#: 205625
CAS#: 937273-04-6 (free base)
Chemical Formula: C26H30N4O4
Exact Mass: 462.22671
Molecular Weight: 462.54
Elemental Analysis: C, 67.51; H, 6.54; N, 12.11; O, 13.84
Related CAS #: 1262279-15-1 (citrate); 937273-04-6 (free base)
Synonym: ONX 0805; ONX0805; ONX0805; SB1578; SB1578; SB 1578.
IUPAC/Chemical Name: (9E)-15-(2-(pyrrolidin-1-yl)ethoxy)-7,12,25-trioxa-19,21,24-triaza-tetracyclo[188.8.131.52(2,5).1(14,18)]hexacosa-1(24),2,4,9,14(26),15,17,20,22-nonaene
InChi Key: NNXDIGHYPZHXTR-ONEGZZNKSA-N
InChi Code: InChI=1S/C26H30N4O4/c1-2-12-30(11-1)13-16-33-24-7-5-21-17-20(24)18-31-14-3-4-15-32-19-22-6-8-25(34-22)23-9-10-27-26(28-21)29-23/h3-10,17H,1-2,11-16,18-19H2,(H,27,28,29)/b4-3+
SMILES Code: C1(C2=CC=C(O2)COC/C=C/COCC3=CC(N4)=CC=C3OCCN5CCCC5)=NC4=NC=C1
Appearance: Solid powder
Purity: >98% (or refer to the Certificate of Analysis)
Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.
Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).
Solubility: Soluble in DMSO, not in water
Shelf Life: >2 years if stored properly
Drug Formulation: This drug may be formulated in DMSO
Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).
HS Tariff Code: 2934.99.9001
The following data is based on the product molecular weight 462.54 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.
|Concentration / Solvent Volume / Mass||1 mg||5 mg||10 mg|
|1 mM||1.15 mL||5.76 mL||11.51 mL|
|5 mM||0.23 mL||1.15 mL||2.3 mL|
|10 mM||0.12 mL||0.58 mL||1.15 mL|
|50 mM||0.02 mL||0.12 mL||0.23 mL|
1: Madan B, Goh KC, Hart S, William AD, Jayaraman R, Ethirajulu K, Dymock BW, Wood JM. SB1578, a novel inhibitor of JAK2, FLT3, and c-Fms for the treatment of rheumatoid arthritis. J Immunol. 2012 Oct 15;189(8):4123-34. doi: 10.4049/jimmunol.1200675. Epub 2012 Sep 7. PubMed PMID: 22962687.
2: Poulsen A, William A, Blanchard S, Lee A, Nagaraj H, Wang H, Teo E, Tan E, Goh KC, Dymock B. Structure-based design of oxygen-linked macrocyclic kinase inhibitors: discovery of SB1518 and SB1578, potent inhibitors of Janus kinase 2 (JAK2) and Fms-like tyrosine kinase-3 (FLT3). J Comput Aided Mol Des. 2012 Apr;26(4):437-50. doi: 10.1007/s10822-012-9572-z. Epub 2012 Apr 22. PubMed PMID: 22527961.
3: William AD, Lee AC, Poulsen A, Goh KC, Madan B, Hart S, Tan E, Wang H, Nagaraj H, Chen D, Lee CP, Sun ET, Jayaraman R, Pasha MK, Ethirajulu K, Wood JM, Dymock BW. Discovery of the macrocycle (9E)-15-(2-(pyrrolidin-1-yl)ethoxy)-7,12,25-trioxa-19,21,24-triaza-tetracyclo[18. 3.1.1(2,5).1(14,18)]hexacosa-1(24),2,4,9,14(26),15,17,20,22-nonaene (SB1578), a potent inhibitor of janus kinase 2/fms-like tyrosine kinase-3 (JAK2/FLT3) for the treatment of rheumatoid arthritis. J Med Chem. 2012 Mar 22;55(6):2623-40. doi: 10.1021/jm201454n. Epub 2012 Mar 6. PubMed PMID: 22339472.
(Last updated: 4/20/2016).
SB1518 (ONX 0803) has been designed to suppress the overactivity of mutant JAK2 and is currently in multiple Phase 1 studies. Data from these Phase 1 dose-ranging studies, evaluating the compound in patients with primary myelofibrosis, are anticipated in the first half of 2009.