3-Pyridinemethanamine → 2-(3-(cyclopropylmethyl)-2-oxoimidazolidin-1-yl)-N-(pyridin-3-ylmethyl)thiazole-5-carboxamide

HRID 2067568Notes

Reaction equation

HRID 2067568 reaction equation
[CH:1]1([CH2:4][N:5]2[CH2:9][CH2:8][N:7]([C:10]3[S:11][C:12]([C:15]([OH:17])=O)=[CH:13][N:14]=3)[C:6]2=[O:18])[CH2:3][CH2:2]1.C(N(CC)C(C)C)(C)C.Cl.C(N=C=NCCCN(C)C)C.ON1C2C=CC=CC=2N=N1.[N:50]1[CH:55]=[CH:54][CH:53]=[C:52]([CH2:56][NH2:57])[CH:51]=1>CN(C)C=O>[CH:1]1([CH2:4][N:5]2[CH2:9][CH2:8][N:7]([C:10]3[S:11][C:12]([C:15]([NH:57][CH2:56][C:52]4[CH:51]=[N:50][CH:55]=[CH:54][CH:53]=4)=[O:17])=[CH:13][N:14]=3)[C:6]2=[O:18])[CH2:2][CH2:3]1

Participants

7

Reactant 5

HCID 310183-PyridinemethanamineHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 580314172-(3-(Cyclopropylmethyl)-2-oxoimidazolidin-1-yl)thiazole-5-carboxylic acid

Product 1

HCID 250964442-(3-(cyclopropylmethyl)-2-oxoimidazolidin-1-yl)-N-(pyridin-3-ylmethyl)thiazole-5-carboxamideYield 40%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 2-(3-(cyclopropylmethyl)-2-oxoimidazolidin-1-yl)thiazole-5-carboxylic acid (0.10 g, 0.37 mmol) in anhydrous N,N-dimethylformamide (10 mL) was added N,N-diisopropylethylamine (0.17 mL, 1.34 mmol), followed by the addition of 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (0.11 g, 0.59 mmol). The reaction was stirred at ambient temperature for 0.5 hours. 1-Hydroxybenzotriazole (0.07 g, 0.52 mmol) was added, followed by the addition of pyridin-3-ylmethanamine (0.06 g, 0.56 mmol). The reaction mixture was stirred at ambient temperature for 18 hours. The solvent was concentrated in vacuo. The residue was diluted with dichloromethane (150 mL), washed with water (100 mL) and brine (50 mL). The organic layer was dried over anhydrous sodium sulfate, filtered and concentrated in vacuo. The residue was crystallized in dichloromethane and hexane to yield the title compound as a colorless solid in 40% yield (0.065 g): mp 190-192° C. (dichloromethane/hexanes); 1H NMR (300 MHz, DMSO-d6) δ 8.98 (t, J=5.8 Hz 1H), 8.49 (m, 1H), 8.43-8.39 (m, 1H), 7.98 (s, 1H), 7.68-7.65 (m, 1H), 7.34-7.30 (m, 1H), 4.40 (d, J=5.8 Hz, 2H), 4.01-3.95 (m, 2H), 3.65-3.59 (m, 2H), 3.07 (d, J=7.1 Hz, 2H), 1.01-0.85 (m, 1H), 0.53-0.39 (m, 2H), 0.21-0.16 (m, 2H); 13C NMR (75 MHz, DMSO-d6) δ 161.5, 161.3, 155.1, 149.3, 148.6, 140.1, 135.7, 135.3, 127.1, 123.9, 48.2, 42.5, 42.3, 9.31, 3.63; MS (ES+) m/z 358.2 (M+1).

Workup

  1. stirringThe reaction mixture was stirred at ambient temperature for 18 hours
  2. concentrationThe solvent was concentrated in vacuo
  3. additionThe residue was diluted with dichloromethane (150 mL)
  4. washwashed with water (100 mL) and brine (50 mL)
  5. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo
  8. customThe residue was crystallized in dichloromethane

Sources & evidence

ORD record
ord-dd4fda5b290a41eea16d78b0e74abada
Source dataset
uspto-grants-2012_10
Patent number
US08293768B2

Reaction notes

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