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Potassium Carbonate → 5-(2-(3-((tert-butyldimethylsilyl)oxy)propyl)-2H-tetrazol-5-yl)-3-iodopyridin-2-amine

HRID 2199617
Notes
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Reaction equation

HRID 2199617 reaction equation
[I:1][C:2]1[C:3]([NH2:13])=[N:4][CH:5]=[C:6]([C:8]2[N:9]=[N:10][NH:11][N:12]=2)[CH:7]=1.Br[CH2:15][CH2:16][CH2:17][O:18][Si:19]([C:22]([CH3:25])([CH3:24])[CH3:23])([CH3:21])[CH3:20].C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O.C(OCC)(=O)C>[Si:19]([O:18][CH2:17][CH2:16][CH2:15][N:10]1[N:11]=[N:12][C:8]([C:6]2[CH:7]=[C:2]([I:1])[C:3]([NH2:13])=[N:4][CH:5]=2)=[N:9]1)([C:22]([CH3:23])([CH3:24])[CH3:25])([CH3:21])[CH3:20]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 607486(3-Bromopropoxy)(tert-butyl)dimethylsilaneHCID 1212689243-iodo-5-(2H-tetrazol-5-yl)pyridin-2-amine

Product 1

HCID 1317356905-(2-(3-((tert-butyldimethylsilyl)oxy)propyl)-2H-tetrazol-5-yl)-3-iodopyridin-2-amine

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolvent
HCID 8857Ethyl AcetateSolvent

Conditions

Temperature
80 °C

Procedure

The reaction mixture of 3-iodo-5-(2H-tetrazol-5-yl)pyridin-2-amine (0.61 g, 2.12 mmol, 1 eq), (3-bromopropoxy)-tert-butyldimethylsilane (0.66 mL, 1.3 eq), and potassium carbonate (0.44 g, 1.5 eq) in anhydrous dimethylformamide (8 mL) was stirred and heated at 80° C. under nitrogen atmosphere for 2 hours. It was then diluted with ethyl acetate, washed sequentially with aqueous ammonium chloride, saturated aqueous sodium bicarbonate, and brine, and dried with anhydrous sodium sulfate. The upper clear solution was decanted and concentrated under reduced pressure with silica gel. A gradient column chromatography [Hexane to EtOAc-Hex (1:2)] rendered 5-(2-(3-((tert-butyldimethylsilyl)oxy)propyl)-2H-tetrazol-5-yl)-3-iodopyridin-2-amine as a white solid in the amount of 797 mg.

Workup

  1. washwashed sequentially with aqueous ammonium chloride, saturated aqueous sodium bicarbonate, and brine
  2. dry with materialdried with anhydrous sodium sulfate
  3. customThe upper clear solution was decanted
  4. concentrationconcentrated under reduced pressure with silica gel

Sources & evidence

ORD record
ord-061b2277407441fd9f8054bf99fbdb35
Source dataset
uspto-grants-2016_06
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09359336B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes