Benzoic Acid → HCID 59694170, compound

HRID 1624344Notes

Reaction equation

HRID 1624344 reaction equation
[NH:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[CH2:10][N:11]([CH:16]1[C:25]2[N:24]=[CH:23][CH:22]=[CH:21][C:20]=2[CH2:19][CH2:18][CH2:17]1)[CH2:12][CH2:13][CH2:14][NH2:15].O.ON1C2C=CC=CC=2N=N1.Cl.CN(C)CCCN=C=NCC.[C:49](O)(=[O:56])[C:50]1[CH:55]=[CH:54][CH:53]=[CH:52][CH:51]=1>CN(C=O)C.C(OCC)(=O)C.O>[NH:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[CH2:10][N:11]([CH:16]1[C:25]2[N:24]=[CH:23][CH:22]=[CH:21][C:20]=2[CH2:19][CH2:18][CH2:17]1)[CH2:12][CH2:13][CH2:14][NH:15][C:49](=[O:56])[C:50]1[CH:55]=[CH:54][CH:53]=[CH:52][CH:51]=1

Participants

8

Reactant 4

HCID 243Benzoic AcidHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27960291-Hydroxybenzotriazole hydrateHCID 10308735HCID 10308735, compound

Product 1

HCID 59694170HCID 59694170, compoundYield 37%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of N1-(1H-benzoimidazol-2-ylmethyl)-N1-(5,6,7,8-tetrahydro-quinolin-8-yl)-propane-1,3-diamine (166 mg, 0.50 mmol) in DMF (3 mL) was added 1-hydroxybenzotriazole hydrate (100 mg, 0.74 mmol), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (142 mg, 0.74 mmol), and benzoic acid (73 mg, 0.59 mmol). The reaction mixture was stirred overnight at room temperature. Then it was diluted with ethyl acetate (40 mL) and water (25 mL). The organic layer was washed with saturated NaHCO3 (30 mL) and brine (30 mL), dried (Na2SO4), filtered, concentrated, and dried in vacuo to afford a yellow oil. Purification by radial chromatography on silica gel (1 mm plate; using NH4OH/CH−3OH/CH2Cl2; 1:1:100→1:3:100) afforded the product as a yellow foam (80 mg, 37%). 1H NMR (CDCl3) δ 1.68-1.74 (m, 4H), 2.02-2.04 (m, 1H), 2.22 (m, 1H), 2.62-2.69 (m, 2H), 2.81 (t, 1H, J=4.8 Hz), 2.84-2.90 (m, 2H), 3.34-3.38 (m, 1H), 3.55-3.59 (m, 1H), 4.01-4.05 (m, 2H), 7.10-7.18 (m, 4H), 7.32 (t, 2H, J=7.8 Hz), 7.42-7.48 (m, 2H), 7.59 (dd, 2H, J=8.0, 1.5 Hz), 7.65 (br s, 1H), 8.43 (dd, 1H, J=3.9, 1.2 Hz).

Workup

  1. washThe organic layer was washed with saturated NaHCO3 (30 mL) and brine (30 mL)
  2. dry with materialdried (Na2SO4)
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customdried in vacuo
  6. customto afford a yellow oil
  7. customPurification by radial chromatography on silica gel (1 mm plate; using NH4OH/CH−3OH/CH2Cl2; 1:1:100→1:3:100)

Sources & evidence

ORD record
ord-dbaf975866c74a44a714f799865fd352
Source dataset
uspto-grants-2014_07
Patent number
US08778967B2

Reaction notes

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