N-Bromosuccinamide → (1S,4R)-4-[5-(2-bromo-3-methyl-5-{[4-(trifluoromethyl)pyrimidin-2-yl]amino}phenyl)-1,3-thiazol-2-yl]-4-hydroxy-2,2-dimethylcyclohexanecarboxylic acid

HRID 410646Notes

Reaction equation

HRID 410646 reaction equation
[OH:1][C@:2]1([C:13]2[S:14][C:15]([C:18]3[CH:23]=[C:22]([NH:24][C:25]4[N:30]=[C:29]([C:31]([F:34])([F:33])[F:32])[CH:28]=[CH:27][N:26]=4)[CH:21]=[C:20]([CH3:35])[CH:19]=3)=[CH:16][N:17]=2)[CH2:7][CH2:6][C@H:5]([C:8]([OH:10])=[O:9])[C:4]([CH3:12])([CH3:11])[CH2:3]1.[Br:36]NC(=O)CCC(N)=O>C(Cl)(Cl)Cl>[Br:36][C:19]1[C:20]([CH3:35])=[CH:21][C:22]([NH:24][C:25]2[N:30]=[C:29]([C:31]([F:33])([F:34])[F:32])[CH:28]=[CH:27][N:26]=2)=[CH:23][C:18]=1[C:15]1[S:14][C:13]([C@@:2]2([OH:1])[CH2:7][CH2:6][C@H:5]([C:8]([OH:10])=[O:9])[C:4]([CH3:11])([CH3:12])[CH2:3]2)=[N:17][CH:16]=1

Participants

4

Reactant 2

HCID 9834204N-BromosuccinamideHCID 53251506(1S,4R)-4-hydroxy-2,2-dimethyl-4-[5-(3-methyl-5-{[4-(trifluoromethyl)pyrimidin-2-yl]amino}phenyl)-1,3-thiazol-2-yl]cyclohexanecarboxylic acid

Product 1

HCID 58456101(1S,4R)-4-[5-(2-bromo-3-methyl-5-{[4-(trifluoromethyl)pyrimidin-2-yl]amino}phenyl)-1,3-thiazol-2-yl]-4-hydroxy-2,2-dimethylcyclohexanecarboxylic acidYield 38.4%

Reagents, catalysts & solvents 1

HCID 6212ChloroformSolvent

Procedure

To a suspension of (1S,4R)-4-hydroxy-2,2-dimethyl-4-[5-(3-methyl-5-{[4-(trifluoromethyl)pyrimidin-2-yl]amino}phenyl)-1,3-thiazol-2-yl]cyclohexanecarboxylic acid (example 42(1), 50 mg, 0.099 mmol) in chloroform (800 μL) was added N-bromosuccinamide (21 mg, 0.12 mmol). The mixture was stirred at room temperature for 15 minutes, and then concentrated under reduced pressure. The residue was purified by column chromatography on silica gel (Biotage 10 G, eluting with 1:99 to 10:90 methanol:dichloromethane) to give (1S,4R)-4-[5-(2-bromo-3-methyl-5-{[4-(trifluoromethyl)pyrimidin-2-yl]amino}phenyl)-1,3-thiazol-2-yl]-4-hydroxy-2,2-dimethylcyclohexanecarboxylic acid (22 mg, 0.038 mmol, 38% yield) as a pale yellow solid. ESI: [M+H]+ m/z 587.1. 1H NMR (500 MHz, CD3OD) δ 8.70 (d, J=4.9, 1H), 7.86 (d, J=2.6, 1H), 7.78-7.64 (m, 2H), 7.13 (d, J=4.9, 1H), 2.46 (s, 3H), 2.35 (dd, J=2.9, 12.8, 1H), 2.22 (ddd, J=6.1, 13.2, 24.2, 1H), 2.01 (dd, J=6.7, 14.5, 3H), 1.79 (d, J=14.4, 1H), 1.72 (dd, J=3.2, 13.5, 1H), 1.22 (s, 3H), 1.11 (s, 3H). rhSYK activity=+++

Workup

  1. concentrationconcentrated under reduced pressure
  2. customThe residue was purified by column chromatography on silica gel (Biotage 10 G, eluting with 1:99 to 10:90 methanol:dichloromethane)

Sources & evidence

ORD record
ord-0391f7682b6245f9819c54f357361a48
Source dataset
uspto-grants-2014_06
Patent number
US08759366B2

Reaction notes

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