| | Identification | Back Directory |  | [Name] 
 MK-886
 |  | [CAS] 
 118414-82-7
 |  | [Synonyms] 
 MK866
 MK-886
 L-663,536
 CGS-81585
 MK-886 (L-663,536)
 MK-886  (Free Base)
 3-[1-(4-Chlorobenzyl)-3-t-butylthio-5-isopropylindol-2-yl]-2,2-dimethylpropanoic  acid
 3-[3-tert-Butylthio-1-(4-chlorobenzyl)-5-isopropyl-1H-indol-2-yl]-2,2-dimethylpropionic acid
 3-(3-(tert-butylthio)-1-(4-chlorobenzyl)-5-isopropyl-1H-indol-2-yl)-2,2-diMethylpropanoic acid
 3-[1-(4-Chlorobenzyl)-3-(tert-butylthio)-5-isopropyl-1H-indol-2-yl]-2,2-dimethylpropanoic acid
 3-[1-(4-Chlorobenzyl)-3-(tert-butylthio)-5-isopropyl-1H-indol-2-yl]-2,2-dimethylpropionic acid
 3-[3-(tert-butylsulfanyl)-1-(4-chlorobenzyl)-5-(propan-2-yl)-1H-indol-2-yl]-2,2-dimethylpropanoic acid
 3-[tert-Butylthio-1-(4-chlorobenzyl)-5-isopropyl-1H-indol-2-yl]-2,2-dimethylpropionic Acid, Sodium Salt
 1-[(4-Chlorophenyl)methyl]-3-[(1,1-dimethylethyl)thio]-α,α-dimethyl-5-(1-methylethyl)-1H-Indole-2-propanoicacid
 1-[(4-CHLOROPHENYL)METHYL]-3-[(1,1-DIMETHYLETHYL)THIO]-ALPHA,ALPHA-DIMETHYL-5-(1-METHYLETHYL)-1H-INDOLE-2-PROPANOIC ACID
 1H-Indole-2-propanoic acid, 1-((4-chlorophenyl)methyl)-3-((1,1-dimethylethyl)thio)-alpha,alpha-dimethyl-5-(1-methylethyl)-
 |  | [Molecular Formula] 
 C27H33ClNO2S.Na
 |  | [MDL Number] 
 MFCD00876710
 |  | [MOL File] 
 118414-82-7.mol
 |  | [Molecular Weight] 
 494.07
 | 
 | Chemical Properties | Back Directory |  | [Appearance] 
 White Solid
 |  | [Melting point ] 
 295-297°C
 |  | [storage temp. ] 
 2-8°C
 
 |  | [solubility ] 
 DMSO: 32 mg/mL
 
 |  | [form ] 
 White solid.
 |  | [color ] 
 white
 
 |  | [Stability:] 
 Stable for 1 year as supplied. Solutions in DMSO or ethanol may be stored at -20°C for up to 2 months.
 |  | [InChIKey] 
 CBNCIYNCWVGEKJ-UHFFFAOYSA-M
 |  | [SMILES] 
 N1(CC2=CC=C(Cl)C=C2)C(CC(C)(C)C([O-])=O)=C(SC(C)(C)C)C2C=C(C(C)C)C=CC1=2.[Na+]
 | 
 | Hazard Information | Back Directory |  | [Chemical Properties] 
 White Solid
 |  | [Uses] 
 Binds to 5-lipoxygenase-activating protein with high affinity and prevents the activation of 5-lipoxygenase, thus inhibiting the biosynthesis of leukotrienes.
 |  | [Definition] 
 ChEBI: A member of the class of indoles that is 1H-indole substituted by a isopropyl group at position 5, a tert-butylsulfanediyl group at position 3, a 4-chlorobenzyl group at position 1 and a 2-carboxy-2-methylpropyl group at pos
tion 2. It acts as an inhibitor of  arachidonate 5-lipoxygenase.
 |  | [Biological Activity] 
 An  inhibitor  of  leukotriene  biosynthesis  (IC  50 =  3  nM  in  human  polymorphonuclear  leukocytes).  Acts  by  inhibiting  5-lipoxygenase-activating  protein  (FLAP)  (IC  50 =  30  nM  for  inhibition  of  [  125  I]-L-691,678  photoaffinity  labelling).  Also  moderately  potent  PPAR  α antagonist  (IC  50 =  0.5-1 μ  M).  Orally  active in  vivo  .
 |  | [Description] 
 MK-886 (118414-82-7) is an inhibitor of leukotriene biosynthesis(IC50 = 2.5 nM in human PMN)1 via 5-lipoxygenase-activating protein (FLAP) inhibition (IC50 = 30 nM)2. MK-886 also inhibits PPARα (80% inhibition at 10 μM).3
 |  | [storage] 
 Store at RT
 |  | [References] 
 References/Citations
1) Gillard et al (1989) L-663,536 (MK-886) (3-[1-(4-chlorobenzyl)-3-t-butyl-thio-5-isopropylindol-2-yl]-2,2-dimethylpropanoic acid), a novel, orally active leukotriene biosynthesis inhibitor; Can. .J. Physiol .Pharmacol. 67 456
2) Evans et al (1991) 5-Lipoxygenase-activating protein is the target of a quinoline class of leukotriene synthesis inhibitors; Mol. Pharmacol. 40 22
3) Kehrer et al (2001) Inhibition of peroxisome-proliferator-activated receptor (PPAR)α by MK886; Biochem. J. 356 899
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