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

HRID 596045
Notes
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Reaction equation

HRID 596045 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
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

8

Reactant 5

HCID 111,2-DichloroethaneHCID 81531DiisopropylethylamineHCID 181649HOAtHCID 118045249(S)-2-amino-2-(3-fluoro-5-iodophenyl)ethanol hydrochlorideHCID 1180458424-(3-amino-6-((1R,3R,4R)-3-fluoro-4-hydroxycyclohexyl)pyrazin-2-yl)-2-fluorobenzoic acid

Product 1

HCID 118047042
4-(3-amino-6-((1R,3R,4R)-3-fluoro-4-hydroxycyclohexyl)pyrazin-2-yl)-2-fluoro-N-((S)-1-(3-fluoro-5-iodophenyl)-2-hydroxyethyl)benzamide
Yield 49.6%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

To a solution of 4-(3-amino-6-((1R,3R,4R)-3-fluoro-4-hydroxycyclohexyl)pyrazin-2-yl)-2-fluorobenzoic acid (18 mg, 0.052 mmol) in DMF (0.52 mL) was added (S)-2-amino-2-(3-fluoro-5-iodophenyl)ethanol hydrochloride (19.6 mg, 0.062 mmol), HOAt (10.52 mg, 0.077 mmol), EDC (19.76 mg, 0.103 mmol), and DIEA (27 μl, 0.155 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 15.8 mg of 4-(3-amino-6-((1R,3R,4R)-3-fluoro-4-hydroxycyclohexyl)pyrazin-2-yl)-2-fluoro-N—((S)-1-(3-fluoro-5-iodophenyl)-2-hydroxyethyl)benzamide as a free base (50%). LCMS (m/z): 613.1 (MH+), 0.74 min; 1H NMR (400 MHz, CD3OD) δ ppm 7.89-7.69 (m, 2H), 7.66-7.47 (m, 3H), 7.39-7.26 (m, 1H), 7.12 (d, J=9.4 Hz, 1H), 5.05 (t, J=5.9 Hz, 1H), 4.43-4.14 (m, 1H), 3.84-3.66 (m, 2H), 3.64-3.45 (m, 1H), 2.74 (t, J=11.7 Hz, 1H), 2.17 (td, J=3.1, 6.0 Hz, 1H), 2.05-1.87 (m, 1H), 1.84-1.66 (m, 2H), 1.65-1.47 (m, 1H), 1.47-1.27 (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

Sources & evidence

ORD record
ord-fe797fab397e423ca86746c0f3a450fc
Source dataset
uspto-grants-2016_01
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09242996B2

Reaction notes

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