Triethylamine → Methyl 4-chloro-1-(3-hydroxypropyl)-2-[(2,4,6-trichlorophenyl)amino]-1H-benzimidazole-7-carboxylate

HRID 1398912Notes

Reaction equation

[Cl:1][C:2]1[CH:11]=[CH:10][C:5]([C:6]([O:8][CH3:9])=[O:7])=[C:4]([NH:12][CH2:13][CH2:14][CH2:15][OH:16])[C:3]=1[NH:17][C:18](=S)[NH:19][C:20]1[C:25]([Cl:26])=[CH:24][C:23]([Cl:27])=[CH:22][C:21]=1[Cl:28].Cl.C(N=C=NCCCN(C)C)C.C(N(CC)CC)C>O1CCCC1.C(OCC)(=O)C>[Cl:1][C:2]1[C:3]2[N:17]=[C:18]([NH:19][C:20]3[C:25]([Cl:26])=[CH:24][C:23]([Cl:27])=[CH:22][C:21]=3[Cl:28])[N:12]([CH2:13][CH2:14][CH2:15][OH:16])[C:4]=2[C:5]([C:6]([O:8][CH3:9])=[O:7])=[CH:10][CH:11]=1

Participants

Conditions

Temperature: 50 °C

Procedure

A mixture of methyl 4-chloro-2-[(3-hydroxypropyl)amino]-3-{[(2,4,6-trichlorophenyl)carbamothioyl]amino}benzoate (285 mg, 0.574 mmol), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (121 mg, 0.631 mmol) and triethylamine (0.0880 mL, 0.631 mmol) in tetrahydrofuran (6 mL) was stirred at 50° C. for 14 hr. The reaction mixture was diluted with ethyl acetate, washed with water and brine, dried over anhydrous sodium sulfate, filtered and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel eluting with a 20-50% ethyl acetate/n-hexane gradient mixture to give the title compound as a colorless solid (256 mg, 0.553 mmol, 96%).

Workup

washwashed with water and brine
dry with materialdried over anhydrous sodium sulfate
filtrationfiltered
concentrationconcentrated in vacuo
customThe residue was purified by flash column chromatography on silica gel eluting with a 20-50% ethyl acetate/n-hexane gradient mixture

Sources & evidence

ORD record: ord-45ac9da5696446d3acf6c9c2e9204640
Source dataset: uspto-grants-2014_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08901141B2

Reaction notes

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