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Cyclopropanemethanamine → 5-(5-Methyl-3-phenyl-isoxazol-4-ylmethoxy)-pyrazine-2-carboxylic acid cyclopropylmethyl-amide

HRID 1435830
Notes
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Reaction equation

HRID 1435830 reaction equation
[CH3:1][C:2]1[O:6][N:5]=[C:4]([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=2)[C:3]=1[CH2:13][O:14][C:15]1[N:16]=[CH:17][C:18]([C:21]([OH:23])=O)=[N:19][CH:20]=1.F[B-](F)(F)F.[N:29]1(OC(N(C)C)=[N+](C)C)[C:33]2[CH:34]=[CH:35][CH:36]=CC=2N=N1.C(N(CC)C(C)C)(C)C.NCC1CC1>CN(C=O)C.O>[CH:34]1([CH2:33][NH:29][C:21]([C:18]2[CH:17]=[N:16][C:15]([O:14][CH2:13][C:3]3[C:4]([C:7]4[CH:8]=[CH:9][CH:10]=[CH:11][CH:12]=4)=[N:5][O:6][C:2]=3[CH3:1])=[CH:20][N:19]=2)=[O:23])[CH2:36][CH2:35]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 75646CyclopropanemethanamineHCID 81531DiisopropylethylamineHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 684440545-(5-Methyl-3-phenyl-isoxazol-4-ylmethoxy)-pyrazine-2-carboxylic acid

Product 1

HCID 426360925-(5-Methyl-3-phenyl-isoxazol-4-ylmethoxy)-pyrazine-2-carboxylic acid cyclopropylmethyl-amide

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

To a solution of 5-(5-methyl-3-phenyl-isoxazol-4-ylmethoxy)-pyrazine-2-carboxylic acid (150 mg, 0.48 mmol) in DMF (2 mL) were added 2-(1H-benzotriazole-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate (170 mg, 0.55 mmol), N,N-diisopropyl ethyl amine (410 μL, 2.4 mmol) and aminomethylcyclopropane (41 mg, 0.58 mmol). The resulting reaction mixture was stirred for 30 min at room temperature and diluted with water. The mixture was then extracted with ethyl acetate and the combined organic layers washed with aqueous sodium carbonate (saturated) and dried over sodium sulfate. Concentration and purification by chromatography (SiO2, heptane:ethyl acetate=90:10 to 60:40, 117 mg, 67%) which was obtained as an off-white solid. MS: m/e=365.3 [M+H]+.

Workup

  1. customThe resulting reaction mixture
  2. extractionThe mixture was then extracted with ethyl acetate
  3. washthe combined organic layers washed with aqueous sodium carbonate (saturated)
  4. dry with materialdried over sodium sulfate
  5. concentrationConcentration and purification by chromatography (SiO2, heptane:ethyl acetate=90:10 to 60:40, 117 mg, 67%) which
  6. customwas obtained as an off-white solid

Sources & evidence

ORD record
ord-473d629d2ce14b58a880d79cc3e7c87e
Source dataset
uspto-grants-2009_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07618973B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes