1,2-Dichloroethane → 4-(3-amino-6-((1S,3S,4S)-3-fluoro-4-hydroxycyclohexyl)pyrazin-2-yl)-2-fluoro-N-((S)-1-(3-fluoro-5-iodophenyl)-2-hydroxyethyl)benzamide

HRID 596039Notes

Reaction equation

HRID 596039 reaction equation
[NH2:1][C:2]1[C:3]([C:16]2[CH:24]=[CH:23][C:19]([C:20](O)=[O:21])=[C:18]([F:25])[CH:17]=2)=[N:4][C:5]([C@H:8]2[CH2:13][CH2:12][C@H:11]([OH:14])[C@@H:10]([F:15])[CH2:9]2)=[CH:6][N:7]=1.Cl.[NH2:27][C@@H:28]([C:31]1[CH:36]=[C:35]([I:37])[CH:34]=[C:33]([F:38])[CH:32]=1)[CH2:29][OH:30].C1C=NC2N(O)N=NC=2C=1.C(Cl)CCl.CCN(C(C)C)C(C)C>CN(C=O)C.O>[NH2:1][C:2]1[C:3]([C:16]2[CH:24]=[CH:23][C:19]([C:20]([NH:27][C@@H:28]([C:31]3[CH:36]=[C:35]([I:37])[CH:34]=[C:33]([F:38])[CH:32]=3)[CH2:29][OH:30])=[O:21])=[C:18]([F:25])[CH:17]=2)=[N:4][C:5]([C@H:8]2[CH2:13][CH2:12][C@H:11]([OH:14])[C@@H:10]([F:15])[CH2:9]2)=[CH:6][N:7]=1

Participants

8

Reactant 5

HCID 111,2-DichloroethaneHCID 81531DiisopropylethylamineHCID 181649HOAtHCID 118045249(S)-2-amino-2-(3-fluoro-5-iodophenyl)ethanol hydrochlorideHCID 1180458824-(3-amino-6-((1S,3S,4S)-3-fluoro-4-hydroxycyclohexyl)pyrazin-2-yl)-2-fluorobenzoic acid

Product 1

HCID 1180460314-(3-amino-6-((1S,3S,4S)-3-fluoro-4-hydroxycyclohexyl)pyrazin-2-yl)-2-fluoro-N-((S)-1-(3-fluoro-5-iodophenyl)-2-hydroxyethyl)benzamideYield 33%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

To a solution of 4-(3-amino-6-((1S,3S,4S)-3-fluoro-4-hydroxycyclohexyl)pyrazin-2-yl)-2-fluorobenzoic acid (16 mg, 0.046 mmol) in DMF (0.46 mL) was added (S)-2-amino-2-(3-fluoro-5-iodophenyl)ethanol hydrochloride (17.5 mg, 0.055 mmol), HOAt (9.35 mg, 0.069 mmol), EDC (17.6 mg, 0.092 mmol), and DIEA (24 μl, 0.137 mmol). The reaction mixture was stirred for 15 h. After water was added, the reaction mixture was extracted with EtOAc and the organic layer was washed with water twice. The organic layer was separated and dried over Na2SO4, filtered off and concentrated in vacuo. The crude product was purified by flash chromatography eluting with 0-100% EtOAc/heptane to provide crude product, which was triturated with 70% of DCM/ether to provide 9.3 mg of 4-(3-amino-6-((1S,3S,4S)-3-fluoro-4-hydroxycyclohexyl)pyrazin-2-yl)-2-fluoro-N—((S)-1-(3-fluoro-5-iodophenyl)-2-hydroxyethyl)benzamide as a TFA salt (28%). LCMS (m/z): 613.1 (MH+), 0.74 min; 1H NMR (400 MHz, CD3OD) δ ppm 7.93-7.78 (m, 2H), 7.76-7.57 (m, 3H), 7.73-7.56 (m, 3H), 7.43 (d, J=7.8 Hz, 1H), 7.21 (d, J=9.4 Hz, 1H), 5.15 (t, J=5.9 Hz, 1H), 4.37 (m, 1H), 3.83 (m, 2H), 3.63 (m, 1H), 2.84 (t, J=11.7 Hz, 1H), 2.27 (dd, J=2.9, 9.2 Hz, 1H), 2.14-1.98 (m, 1H), 1.96-1.75 (m, 2H), 1.65 (dq, J=3.3, 13.0 Hz, 1H), 1.56-1.34 (m, 1H).

Workup

  1. extractionthe reaction mixture was extracted with EtOAc
  2. washthe organic layer was washed with water twice
  3. customThe organic layer was separated
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered off
  6. concentrationconcentrated in vacuo
  7. customThe crude product was purified by flash chromatography
  8. washeluting with 0-100% EtOAc/heptane
  9. customto provide crude product, which
  10. customwas triturated with 70% of DCM/ether

Sources & evidence

ORD record
ord-4ddbe03effa546d1a1648c40d1dbdbfa
Source dataset
uspto-grants-2016_01
Patent number
US09242996B2

Reaction notes

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