WARNING: This product is for research use only, not for human or veterinary use.
MedKoo CAT#: 401780
Description: R112 is a Syk inhibitor. R112 inhibited degranulation induced by anti-IgE cross-linking in mast cells (tryptase release, effective concentration for 50% inhibition [EC(50)] = 353 nmol/L) or basophils (histamine release, EC(50) = 280 nmol/L), and by allergen (dust mite) in basophils (histamine release, EC(50) = 490 nmol/L). R112 also blocked leukotriene C4 production and all proinflammatory cytokines tested. Subsequent molecular characterization indicated that R112 is an ATP-competitive spleen tyrosine kinase (Syk) inhibitor (inhibitory constant [K(i)] = 96 nmol/L).
MedKoo Cat#: 401780
Chemical Formula: C16H13FN4O2
Exact Mass: 312.10225
Molecular Weight: 312.3
Elemental Analysis: C, 61.53; H, 4.20; F, 6.08; N, 17.94; O, 10.25
Synonym: R112; R112; R 112.
IUPAC/Chemical Name: 3,3'-((5-fluoropyrimidine-2,4-diyl)bis(azanediyl))diphenol
InChi Key: TVKGTSHBQZEFEE-UHFFFAOYSA-N
InChi Code: InChI=1S/C16H13FN4O2/c17-14-9-18-16(20-11-4-2-6-13(23)8-11)21-15(14)19-10-3-1-5-12(22)7-10/h1-9,22-23H,(H2,18,19,20,21)
SMILES Code: FC1=CN=C(NC2=CC(O)=CC=C2)N=C1NC3=CC(O)=CC=C3
1: Rossi AB, Herlaar E, Braselmann S, Huynh S, Taylor V, Frances R, Issakani SD, Argade A, Singh R, Payan DG, Masuda ES. Identification of the Syk kinase inhibitor R112 by a human mast cell screen. J Allergy Clin Immunol. 2006 Sep;118(3):749-55. Epub 2006 Jul 28. PubMed PMID: 16950297.
2: Guyer BJ, Shimamoto SR, Bradhurst AL, Grossbard EB, Dreskin SC, Nelson HS. Mast cell inhibitor R112 is well tolerated and affects prostaglandin D2 but not other mediators, symptoms, or nasal volumes in a nasal challenge model of allergic rhinitis. Allergy Asthma Proc. 2006 May-Jun;27(3):208-13. PubMed PMID: 16913263.
3: Meltzer EO, Berkowitz RB, Grossbard EB. An intranasal Syk-kinase inhibitor (R112) improves the symptoms of seasonal allergic rhinitis in a park environment. J Allergy Clin Immunol. 2005 Apr;115(4):791-6. PubMed PMID: 15806000.
4: Kang AK, Jenkins DJ, Wolever TM, Huff MW, Maguire GF, Connelly PW, Hegele RA. Apolipoprotein E R112; R251G: a carboxy-terminal variant found in patients with hyperlipidemia and coronary heart disease. Mutat Res. 1997 Sep;382(1-2):57-65. PubMed PMID: 9360638.