Water → tert-butyl (3S,5R)-3-[(1H-benzimidazol-2-ylcarbonyl)(propyl)amino]-5-(morpholin-4-ylcarbonyl)piperidine-1-carboxylate

HRID 1184288Notes

Reaction equation

HRID 1184288 reaction equation
Cl[C:2](Cl)(Cl)[C:3]1[NH:7][C:6]2[CH:8]=[CH:9][CH:10]=[CH:11][C:5]=2[N:4]=1.[N:14]1([C:20]([C@@H:22]2[CH2:27][C@H:26]([NH:28][CH2:29][CH2:30][CH3:31])[CH2:25][N:24]([C:32]([O:34][C:35]([CH3:38])([CH3:37])[CH3:36])=[O:33])[CH2:23]2)=[O:21])[CH2:19][CH2:18][O:17][CH2:16][CH2:15]1.[OH2:39]>C1COCC1.C(=O)(O)[O-].[Na+]>[NH:4]1[C:5]2[CH:11]=[CH:10][CH:9]=[CH:8][C:6]=2[N:7]=[C:3]1[C:2]([N:28]([CH2:29][CH2:30][CH3:31])[C@H:26]1[CH2:27][C@@H:22]([C:20]([N:14]2[CH2:19][CH2:18][O:17][CH2:16][CH2:15]2)=[O:21])[CH2:23][N:24]([C:32]([O:34][C:35]([CH3:37])([CH3:36])[CH3:38])=[O:33])[CH2:25]1)=[O:39]

Participants

6

Reactant 3

HCID 962WaterHCID 77133Benzimidazole, 2-trichloromethyl-HCID 58355640tert-butyl (3R,5S)-3-(morpholin-4-ylcarbonyl)-5-(propylamino)piperidine-1-carboxylate

Product 1

HCID 58355218tert-butyl (3S,5R)-3-[(1H-benzimidazol-2-ylcarbonyl)(propyl)amino]-5-(morpholin-4-ylcarbonyl)piperidine-1-carboxylate

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 516892Sodium BicarbonateSolvent2×

Procedure

2-(Trichloromethyl)-1H-benzimidazole (1.09 g) and tert-butyl (3R,5S)-3-(morpholin-4-ylcarbonyl)-5-(propylamino)piperidine-1-carboxylate (1.49 g) were dissolved in THF (120 ml), sodium hydrogen carbonate (3.52 g) and water (60 ml) were added and the mixture was stirred at room temperature for 2 hr. The reaction mixture was diluted with aqueous sodium bicarbonate, and extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure. The residue was subjected to basic silica gel column chromatography, and a fraction eluted with ethyl acetate-hexane (2:8-10:0) was concentrated under reduced pressure to give the object product (1.97 g).

Workup

  1. extractionextracted with ethyl acetate
  2. washThe extract was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customThe solvent was evaporated under reduced pressure
  5. washa fraction eluted with ethyl acetate-hexane (2:8-10:0)
  6. concentrationwas concentrated under reduced pressure

Sources & evidence

ORD record
ord-ecba9bb0c56b4a0e92a63305471c3b62
Source dataset
uspto-grants-2014_03
Patent number
US08664380B2

Reaction notes

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