Triethylamine → HCID 178425146, compound

HRID 1501080Notes

Reaction equation

HRID 1501080 reaction equation
[O:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[CH2:3][CH:2]1[C:10]1[CH:18]=[CH:17][C:13]([C:14]([OH:16])=O)=[CH:12][CH:11]=1.Cl.C(N=C=NCCCN(C)C)C.ON1C2C=CC=CC=2N=N1.C(N(CC)CC)C.[NH2:48][CH2:49][C:50]1[C:51]([OH:58])=[N:52][C:53]([CH3:57])=[CH:54][C:55]=1[CH3:56]>ClCCl>[O:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[CH2:3][CH:2]1[C:10]1[CH:11]=[CH:12][C:13]([C:14]([NH:48][CH2:49][C:50]2[C:51]([OH:58])=[N:52][C:53]([CH3:57])=[CH:54][C:55]=2[CH3:56])=[O:16])=[CH:17][CH:18]=1

Participants

7

Reactant 5

HCID 8471TriethylamineHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 895805944-(2,3-Dihydrobenzofuran-2-yl)benzoic acidHCID 178425242HCID 178425242, compound

Product 1

HCID 178425146HCID 178425146, compoundYield 66.8%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 4-(2,3-dihydrobenzofuran-2-yl)benzoic acid (0.02 g, 0.08 mmol), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (0.04 g, 0.2 mmol) and N-hydroxybenzotriazole (0.02 g, 0.15 mmol) in dichloromethane (10 mL) was added triethylamine (0.10 g, 1.0 mmol). The reaction mixture was stirred for 15 minutes at room temperature, 3-(aminomethyl)-4,6-dimethylpyridin-2-ol (0.03 g, 0.2 mmol) was added. The reaction mixture was stirred at room temperature for 12 hours. After the reaction, the mixture was washed with water. The organic phase was concentrated and the residue was purified by column chromatography (silica gel, dichloromethane/methanol=15:1) to give pure product as a white solid 4-(2,3-dihydrobenzofuran-2-yl)-N-((2-hydroxy-4,6-dimethylpyridin-3-yl)methyl)benzamide (Compound I-51) (0.02 g, 66%). LRMS (M+H+) m/z: calcd 374.16. found 374. 1H NMR (300 MHz, CD3OD): δ 7.80-7.77 (m, 2H), 7.45 (d, J=8.1 Hz, 2H), 7.18-7.12 (m, 2H), 6.87-7.80 (m, 2H), 6.09 (s, 1H), 5.79 (t, J=9.0 Hz, 1H), 4.49 (s, 2H), 3.73-3.64 (m, 1H), 3.14-3.06 (m, 1H), 2.36 (s, 3H), 2.24 (s, 3H).

Workup

  1. stirringThe reaction mixture was stirred at room temperature for 12 hours
  2. customAfter the reaction
  3. washthe mixture was washed with water
  4. concentrationThe organic phase was concentrated
  5. customthe residue was purified by column chromatography (silica gel, dichloromethane/methanol=15:1)

Sources & evidence

ORD record
ord-7b0d64b0547f4d979b9aa2cf250cd703
Source dataset
uspto-grants-2015_12
Patent number
US09206128B2

Reaction notes

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