Potassium Carbonate → 3-methyl-6-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1,6-diazaspiro[3.5]nonane-1-carboxylic acid benzyl ester

HRID 1912385Notes

Reaction equation

HRID 1912385 reaction equation
[CH2:1]([O:8][C:9]([N:11]1[C:14]2([CH2:19][CH2:18][CH2:17][NH:16][CH2:15]2)[CH:13]([CH3:20])[CH2:12]1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Cl[C:22]1[C:23]2[CH:30]=[CH:29][NH:28][C:24]=2[N:25]=[CH:26][N:27]=1.C(=O)([O-])[O-].[K+].[K+]>O>[CH2:1]([O:8][C:9]([N:11]1[C:14]2([CH2:19][CH2:18][CH2:17][N:16]([C:22]3[C:23]4[CH:30]=[CH:29][NH:28][C:24]=4[N:25]=[CH:26][N:27]=3)[CH2:15]2)[CH:13]([CH3:20])[CH2:12]1)=[O:10])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 53566827H-Pyrrolo(2,3-d)pyrimidine, 4-chloro-HCID 582933243-Methyl-1,6-diazaspiro[3,5]nonane-1-carboxylic acid 1-benzyl ester

Product 1

HCID 582932883-methyl-6-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1,6-diazaspiro[3.5]nonane-1-carboxylic acid benzyl esterYield 95.2%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

An optically-active compound of 3-methyl-1,6-diazaspiro[3,5]nonane-1-carboxylic acid 1-benzyl ester (2.20 g) was mixed with 4-chloro-7H-pyrrolo[2,3-d]pyrimidine (1.17 g), potassium carbonate (3.17 g) and water (12 ml), and the mixture was stirred for 4 hours with refluxing. The mixture was cooled to room temperature, and extracted with chloroform twice. The combined organic layer was washed with water, 10% aqueous sodium chloride solution, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography (eluent: chloroform/ethyl acetate=1/0 to 1/3, followed by chloroform/methanol=95/5) to give the titled compound (2.84 g).

Workup

  1. temperaturewith refluxing
  2. extractionextracted with chloroform twice
  3. washThe combined organic layer was washed with water, 10% aqueous sodium chloride solution
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe resulting residue was purified by silica gel column chromatography (eluent: chloroform/ethyl acetate=1/0 to 1/3, followed by chloroform/methanol=95/5)

Sources & evidence

ORD record
ord-0647112b04e541c489006af262987ac8
Source dataset
uspto-grants-2013_12
Patent number
US08609647B2

Reaction notes

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