N-bromobutanimide → 2-Propen-1-yl[3-[5-(2-chloro-4-pyrimidinyl)-2-(4-morpholinyl)-1,3-thiazol-4-yl]-2-(methyloxy)phenyl]carbamate

HRID 239355Notes

Reaction equation

HRID 239355 reaction equation
[Cl:1][C:2]1[N:7]=[C:6]([CH2:8][C:9]([C:11]2[C:12]([O:24][CH3:25])=[C:13]([NH:17][C:18](=[O:23])[O:19][CH2:20][CH:21]=[CH2:22])[CH:14]=[CH:15][CH:16]=2)=O)[CH:5]=[CH:4][N:3]=1.C1C(=O)N(Br)C(=O)C1.[N:34]1([C:40](=[S:42])[NH2:41])[CH2:39][CH2:38][O:37][CH2:36][CH2:35]1>C(Cl)Cl.CS(C)=O>[Cl:1][C:2]1[N:7]=[C:6]([C:8]2[S:42][C:40]([N:34]3[CH2:39][CH2:38][O:37][CH2:36][CH2:35]3)=[N:41][C:9]=2[C:11]2[C:12]([O:24][CH3:25])=[C:13]([NH:17][C:18](=[O:23])[O:19][CH2:20][CH:21]=[CH2:22])[CH:14]=[CH:15][CH:16]=2)[CH:5]=[CH:4][N:3]=1

Participants

6

Reactant 3

HCID 67184N-bromobutanimideHCID 23935444-MorpholinecarbothioamideHCID 579896212-Propen-1-yl [3-[(2-chloro-4-pyrimidinyl)acetyl]-2-(methyloxy)phenyl]carbamate

Product 1

HCID 579897552-Propen-1-yl[3-[5-(2-chloro-4-pyrimidinyl)-2-(4-morpholinyl)-1,3-thiazol-4-yl]-2-(methyloxy)phenyl]carbamateYield 98.9%

Reagents, catalysts & solvents 2

HCID 679Dimethyl SulfoxideSolventHCID 6344DichloromethaneSolvent

Procedure

To a solution of 2-propen-1-yl [3-[(2-chloro-4-pyrimidinyl)acetyl]-2-(methyloxy)phenyl]carbamate (30 g, 82.9 mmol) in DCM (300 mL), NBS (14.8 g, 82.9 mmol) was added and the solution was allowed to stir at rt for 30 min. The reaction mixture was then concentrated on the rotovap and the resulting oil was diluted with DMSO (240 mL) and 4-morpholinecarbothioamide (14.8 g 101 mmol) was added at once. The reaction was complete after stirring 1 h at rt. The combined organic layers were washed with water and brine successively, dried over Na2SO4, filtered and concentrated under reduced pressure to give the crude product which was purified by column chromatography on silica gel (DCM:petroleum ether 2:1) to afford the product of Step A (40 g, 98.8% yield) which was used directly in the next step.

Workup

  1. concentrationThe reaction mixture was then concentrated on the rotovap
  2. additionwas added at once
  3. stirringafter stirring 1 h at rt
  4. washThe combined organic layers were washed with water and brine successively
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. customto give the crude product which
  9. customwas purified by column chromatography on silica gel (DCM:petroleum ether 2:1)

Sources & evidence

ORD record
ord-1c55de6c76d841c9b7839d2d53dccb3c
Source dataset
uspto-grants-2014_02
Patent number
US08642759B2

Reaction notes

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