Triethylamine → 1-N-[5-bromo-6-methylthieno[2,3-d]pyrimidin-4-yl]cyclohexane-1,4-diamine

HRID 2369415Notes

Reaction equation

HRID 2369415 reaction equation
[Br:1][C:2]1[C:10]2[C:9](Cl)=[N:8][CH:7]=[N:6][C:5]=2[S:4][C:3]=1[CH3:12].[CH:13]1([NH2:20])[CH2:18][CH2:17][CH:16]([NH2:19])[CH2:15][CH2:14]1.C(N(CC)CC)C>CN(C=O)C>[Br:1][C:2]1[C:10]2[C:9]([NH:19][CH:16]3[CH2:17][CH2:18][CH:13]([NH2:20])[CH2:14][CH2:15]3)=[N:8][CH:7]=[N:6][C:5]=2[S:4][C:3]=1[CH3:12]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 183741,4-DiaminocyclohexaneHCID 866733345-Bromo-4-chloro-6-methylthieno[2,3-d]pyrimidine

Product 1

HCID 681101531-N-[5-bromo-6-methylthieno[2,3-d]pyrimidin-4-yl]cyclohexane-1,4-diamineYield 88%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A solution of 5-bromo-4-chloro-6-methylthieno[2,3-d]pyrimidine (79 mg, 0.30 mmol, 1.00 equiv) in anhydrous DMF (5 mL) was added cyclohexane-1,4-diamine (171 mg, 1.50 mmol, 5.00 equiv) and triethylamine (91 mg, 0.90 mmol, 3.00 equiv) successively at room temperature. The resulting solution was stirred overnight at ambient temperature and then quenched with water. The resulting solution was extracted with 3×20 mL of ethyl acetate. The combined organic layers were washed with brine, dried over anhydrous sodium sulfate and concentrated under vacuum to provide the resulted 1-N-[5-bromo-6-methylthieno[2,3-d]pyrimidin-4-yl]cyclohexane-1,4-diamine (90 mg, 88%) as a yellow solid.

Workup

  1. customquenched with water
  2. extractionThe resulting solution was extracted with 3×20 mL of ethyl acetate
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationconcentrated under vacuum

Sources & evidence

ORD record
ord-3c63ac6eb91f427782e1cef55425d2b4
Source dataset
uspto-grants-2014_04
Patent number
US08703941B2

Reaction notes

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