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Water → (1S)-5-(1-Methyl-6-oxo-4-pyridin-4-yl-1,6-dihydro-pyrimidin-2-yl)-2,5-diaza-bicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl ester

HRID 1348578
Notes
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Reaction equation

HRID 1348578 reaction equation
C(N(CC)CC)C.Cl.Cl[C:10]1[N:15]([CH3:16])[C:14](=[O:17])[CH:13]=[C:12]([C:18]2[CH:23]=[CH:22][N:21]=[CH:20][CH:19]=2)[N:11]=1.[C:24]([O:28][C:29]([N:31]1[CH2:36][CH:35]2[CH2:37][C@H:32]1[CH2:33][NH:34]2)=[O:30])([CH3:27])([CH3:26])[CH3:25].O>CN(C)C=O>[C:24]([O:28][C:29]([N:31]1[CH2:36][CH:35]2[CH2:37][C@H:32]1[CH2:33][N:34]2[C:10]1[N:15]([CH3:16])[C:14](=[O:17])[CH:13]=[C:12]([C:18]2[CH:23]=[CH:22][N:21]=[CH:20][CH:19]=2)[N:11]=1)=[O:30])([CH3:27])([CH3:25])[CH3:26]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 962WaterHCID 8471TriethylamineHCID 230245272-chloro-3-methyl-6-pyridin-4-yl-3H-pyrimidin-4-one hydrochlorideHCID 66592084(1S,4S)-(-)-2-Boc-2,5-diazabicyclo[2.2.1]heptane

Product 1

HCID 68801880(1S)-5-(1-Methyl-6-oxo-4-pyridin-4-yl-1,6-dihydro-pyrimidin-2-yl)-2,5-diaza-bicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl ester
Yield 72.1%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
20 °C

Procedure

A mixture containing 10.7 ml (78.14 mmol) of triethylamine, 13.6 g (52.7 mmol) of 2-chloro-3-methyl-6-pyridin-4-yl-3H-pyrimidin-4-one hydrochloride (1:1), 6.0 g (30.24 mmol) of (1S)-2,5-diaza-bicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl ester in 500 ml of anhydrous dimethylformamide is stirred at 20° C. for 6 h. Water is added to the cooled mixture and the resulting solution extracted with ethyl acetate. The combined extracts are washed with saturated aqueous ammonium chloride and saturated aqueous sodium chloride then-evaporated. The crude product is refluxed in diethylether for 1 h to afford 8.36 g of pure product as a brown solid.

Workup

  1. extractionthe resulting solution extracted with ethyl acetate
  2. washThe combined extracts are washed with saturated aqueous ammonium chloride and saturated aqueous sodium chloride
  3. customthen-evaporated
  4. temperatureThe crude product is refluxed in diethylether for 1 h

Sources & evidence

ORD record
ord-0c65aa05e37f49ecb6cd4748622a6d81
Source dataset
uspto-grants-2007_05
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07211581B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes