Triethylamine → HCID 57786187, compound

HRID 1628946Notes

Reaction equation

HRID 1628946 reaction equation
[Cl:1][C:2]1[C:10]2[N:9]=[C:8]3[N:11]([C:15]4[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:16]=4[Cl:22])[CH2:12][CH2:13][CH2:14][N:7]3[C:6]=2[C:5]([CH:23]([OH:26])[CH2:24][CH3:25])=[CH:4][CH:3]=1.[CH3:27][O:28][CH2:29][C:30](O)=[O:31].C(N(CC)CC)C.Cl.C(N=C=NCCCN(C)C)C>CN(C)C1C=CN=CC=1.O1CCCC1.O>[CH3:27][O:28][CH2:29][C:30]([O:26][CH:23]([C:5]1[C:6]2[N:7]3[CH2:14][CH2:13][CH2:12][N:11]([C:15]4[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:16]=4[Cl:22])[C:8]3=[N:9][C:10]=2[C:2]([Cl:1])=[CH:3][CH:4]=1)[CH2:24][CH3:25])=[O:31]

Participants

8

Reactant 4

HCID 8471TriethylamineHCID 12251Methoxyacetic AcidHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 44156374HCID 44156374, compound

Product 1

HCID 57786187HCID 57786187, compoundYield 56%

Reagents, catalysts & solvents 3

HCID 142844-(Dimethylamino)pyridineCatalystHCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 1-[9-chloro-1-(2,4-dichlorophenyl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-yl]propan-1-ol (150 mg, 0.365 mmol), methoxyacetic acid (0.0453 mL, 0.59 mmol), triethylamine (0.25 mL, 1.79 mmol) and 4-dimethylaminopyridine (48.0 mg, 0.39 mmol) in tetrahydrofuran (5.0 mL) was added 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (170 mg, 0.887 mmol) at room temperature. The mixture was stirred at room temperature for 24 hr. Water was added to the reaction mixture and the mixture was extracted with ethyl acetate. The organic layer was washed with water and brine, dried over anhydrous magnesium sulfate and concentrated in vacuo. The residue was purified by flash chromatography on silica gel eluting with a 25-80% ethyl acetate/n-hexane gradient mixture and recrystallization from 2-propanol/diisopropyl ether to give the title compound (98.4 mg, 0.204 mmol, 56%) as colorless crystals.

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with water and brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by flash chromatography on silica gel eluting with a 25-80% ethyl acetate/n-hexane gradient mixture and recrystallization from 2-propanol/diisopropyl ether

Sources & evidence

ORD record
ord-f004fdc965e64dd08c9f1276a34ea47a
Source dataset
uspto-grants-2014_07
Patent number
US08785460B2

Reaction notes

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