Lithium Hydroxide → 3-[{[5-({1-[5-(6-Methoxypyridin-3-yl)-2-methylfuran-3-yl]-3-methylbutyl}amino)pyridin-2-yl]carbonyl}(methyl)amino]propanoic acid

HRID 1877297Notes

Reaction equation

HRID 1877297 reaction equation
[CH3:1][O:2][C:3]1[N:8]=[CH:7][C:6]([C:9]2[O:13][C:12]([CH3:14])=[C:11]([CH:15]([NH:20][C:21]3[CH:22]=[CH:23][C:24]([C:27]([N:29]([CH3:37])[CH2:30][CH2:31][C:32]([O:34]CC)=[O:33])=[O:28])=[N:25][CH:26]=3)[CH2:16][CH:17]([CH3:19])[CH3:18])[CH:10]=2)=[CH:5][CH:4]=1.O1CCCC1.[OH-].[Li+]>C(O)C>[CH3:1][O:2][C:3]1[N:8]=[CH:7][C:6]([C:9]2[O:13][C:12]([CH3:14])=[C:11]([CH:15]([NH:20][C:21]3[CH:22]=[CH:23][C:24]([C:27]([N:29]([CH3:37])[CH2:30][CH2:31][C:32]([OH:34])=[O:33])=[O:28])=[N:25][CH:26]=3)[CH2:16][CH:17]([CH3:19])[CH3:18])[CH:10]=2)=[CH:5][CH:4]=1

Participants

5

Reactant 3

HCID 3939Lithium HydroxideHCID 8028TetrahydrofuranHCID 68511478Ethyl 3-[{[5-({1-[5-(6-methoxypyridin-3-yl)-2-methylfuran-3-yl]-3-methylbutyl}amino)pyridin-2-yl]carbonyl}(methyl)amino]propanoate

Product 1

HCID 595293643-[{[5-({1-[5-(6-Methoxypyridin-3-yl)-2-methylfuran-3-yl]-3-methylbutyl}amino)pyridin-2-yl]carbonyl}(methyl)amino]propanoic acidYield 70%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

A solution of 5-({1-[5-(6-methoxypyridin-3-yl)-2-methylfuran-3-yl]-3-methylbutyl}amino)pyridine-2-carboxylic acid (395 mg), ethyl 3-(methylamino)propanoate (157 mg), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (230 mg), hydroxybenzotriazole monohydrate (184 mg) and triethylamine (168 μL) in N,N-dimethylformamide (10 mL) was stirred at room temperature for 4 hr. Ethyl acetate was added, the mixture was washed with saturated aqueous sodium hydrogen carbonate solution and water, and the organic layer was dried over magnesium sulfate. The solvent was evaporated under reduced pressure, and the organic layer was dried over magnesium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by silica gel chromatography (5% ethyl acetate/hexane to 50% ethyl acetate/hexane) to give ethyl 3-[{[5-({1-[5-(6-methoxypyridin-3-yl)-2-methylfuran-3-yl]-3-methylbutyl}amino)pyridin-2-yl]carbonyl}(methyl)amino]propanoate (155 mg). Ethyl 3-[{[5-({1-[5-(6-methoxypyridin-3-yl)-2-methylfuran-3-yl]-3-methylbutyl}amino)pyridin-2-yl]carbonyl}(methyl)amino]propanoate was dissolved in ethanol (2 mL), tetrahydrofuran (2 mL) and 1N lithium hydroxide (0.6 mL) were added, and the mixture was stirred at room temperature for 1 hr. The solvent was evaporated under reduced pressure, and water (10 mL) was added. The mixture was neutralized with 1N hydrochloric acid under ice-cooling, and stirred for 1 hr. The resulting precipitate was collected by filtration and dried to give the title compound (100 mg, 70%).

Workup

  1. customThe solvent was evaporated under reduced pressure, and water (10 mL)
  2. additionwas added
  3. temperaturecooling
  4. stirringstirred for 1 hr
  5. filtrationThe resulting precipitate was collected by filtration
  6. customdried

Sources & evidence

ORD record
ord-f744eda9736e42938edc78a031cbf654
Source dataset
uspto-grants-2012_11
Patent number
US08309580B2

Reaction notes

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