Cyclohexanesulfonyl chloride → N-{3-[5-(2-Chloro-4-pyrimidinyl)-2-(4-morpholinyl)-1,3-thiazol-4-yl]-2-fluorophenyl}cyclohexanesulfonamide

HRID 1671028Notes

Reaction equation

HRID 1671028 reaction equation
[Cl:1][C:2]1[N:7]=[C:6]([C:8]2[S:12][C:11]([N:13]3[CH2:18][CH2:17][O:16][CH2:15][CH2:14]3)=[N:10][C:9]=2[C:19]2[C:20]([F:26])=[C:21]([CH:23]=[CH:24][CH:25]=2)[NH2:22])[CH:5]=[CH:4][N:3]=1.[CH:27]1([S:33](Cl)(=[O:35])=[O:34])[CH2:32][CH2:31][CH2:30][CH2:29][CH2:28]1>N1C=CC=CC=1>[Cl:1][C:2]1[N:7]=[C:6]([C:8]2[S:12][C:11]([N:13]3[CH2:14][CH2:15][O:16][CH2:17][CH2:18]3)=[N:10][C:9]=2[C:19]2[C:20]([F:26])=[C:21]([NH:22][S:33]([CH:27]3[CH2:32][CH2:31][CH2:30][CH2:29][CH2:28]3)(=[O:35])=[O:34])[CH:23]=[CH:24][CH:25]=2)[CH:5]=[CH:4][N:3]=1

Participants

4

Reactant 2

HCID 237554Cyclohexanesulfonyl chloride2×HCID 579897213-(5-(2-Chloropyrimidin-4-yl)-2-morpholinothiazol-4-yl)-2-fluoroaniline

Product 1

HCID 57989819N-{3-[5-(2-Chloro-4-pyrimidinyl)-2-(4-morpholinyl)-1,3-thiazol-4-yl]-2-fluorophenyl}cyclohexanesulfonamideYield 37.2%

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

3-(5-(2-Chloropyrimidin-4-yl)-2-morpholinothiazol-4-yl)-2-fluoroaniline (200 mg, 0.510 mmol) was suspended in pyridine (2 mL) and after 5 min, cyclohexanesulfonyl chloride (0.148 mL 1.021 mmol) was added. The mixture was stirred overnight. Additional cyclohexanesulfonyl chloride (0.100 mL 0.69 mmol) was added and stirred overnight. Silica gel was added the reaction mixture and concentrated. The crude product was chromatographed on silica gel eluting with DCM and 9:1 (EtOAc:MeOH). The product was chromatographed again with 9:1 hexane:EtOAc increasing to 1:1 gradient. The clean fractions were concentrated to yield the title compound of Step A (102 mg, 37% yield). A second reaction was run (46 mg, 17% yield) same scale and combined to yield the title compound of Step A (148 mg). 1H NMR (400 MHz, DMSO-d6) δ ppm 9.70 (s, 1H) 8.34 (d, J=5.5 Hz, 1H) 7.55 (td, J=7.6, 2.0 Hz, 2H) 7.14-7.38 (m, 3H) 6.65 (d, J=5.5 Hz, 1H) 3.68 (t, J=4.7 Hz, 4H) 3.52 (t, J=4.6 Hz, 4H) 2.79-3.04 (m, 1H) 2.01 (d, J=11.4 Hz, 2H) 1.69 (d, J=13.0 Hz, 3H) 1.47-1.63 (m, 2H) 1.26-1.42 (m, 3H) 0.84 (t, J=7.4 Hz, 1H).

Workup

  1. stirringstirred overnight
  2. additionSilica gel was added the reaction mixture
  3. concentrationconcentrated
  4. customThe crude product was chromatographed on silica gel eluting with DCM and 9:1 (EtOAc:MeOH)
  5. customThe product was chromatographed again with 9:1 hexane
  6. concentrationThe clean fractions were concentrated

Sources & evidence

ORD record
ord-69ce0429a4494680aa38b076f728ce94
Source dataset
uspto-grants-2011_08
Patent number
US07994185B2

Reaction notes

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