Sodium Hydroxide → 3-[{[4-({cyclohexyl[2-ethyl-5-(tetrahydro-2H-pyran-4-yl)thiophen-3-yl]methyl}amino)phenyl]carbonyl}(methyl)amino]propanoic acid

HRID 1877214Notes

Reaction equation

HRID 1877214 reaction equation
[CH:1]1([CH:7]([NH:21][C:22]2[CH:30]=[CH:29][C:25]([C:26](O)=[O:27])=[CH:24][CH:23]=2)[C:8]2[CH:12]=[C:11]([CH:13]3[CH2:18][CH2:17][O:16][CH2:15][CH2:14]3)[S:10][C:9]=2[CH2:19][CH3:20])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.[CH3:31][NH:32][CH2:33][CH2:34][C:35]([O:37]CC)=[O:36].O.ON1C2C=CC=CC=2N=N1.Cl.C(N=C=NCCCN(C)C)C.[Cl-].[NH4+].[OH-].[Na+]>CN(C)C=O.C(O)C.O1CCCC1.C(N(CC)CC)C>[CH:1]1([CH:7]([NH:21][C:22]2[CH:23]=[CH:24][C:25]([C:26]([N:32]([CH3:31])[CH2:33][CH2:34][C:35]([OH:37])=[O:36])=[O:27])=[CH:29][CH:30]=2)[C:8]2[CH:12]=[C:11]([CH:13]3[CH2:14][CH2:15][O:16][CH2:17][CH2:18]3)[S:10][C:9]=2[CH2:19][CH3:20])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1

Participants

11

Reactant 6

HCID 14798Sodium HydroxideHCID 25517Ammonium ChlorideHCID 541480Ethyl 3-(methylamino)propanoateHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27960291-Hydroxybenzotriazole hydrateHCID 685112004-({cyclohexyl[2-ethyl-5-(tetrahydro-2H-pyran-4-yl)thiophen-3-yl]methyl}amino)benzoic acid

Product 1

HCID 595295903-[{[4-({cyclohexyl[2-ethyl-5-(tetrahydro-2H-pyran-4-yl)thiophen-3-yl]methyl}amino)phenyl]carbonyl}(methyl)amino]propanoic acidYield 53.4%

Reagents, catalysts & solvents 4

HCID 702EthanolSolventHCID 6228DimethylformamideSolventHCID 8028TetrahydrofuranSolventHCID 8471TriethylamineSolvent

Procedure

To a mixture of 4-({cyclohexyl[2-ethyl-5-(tetrahydro-2H-pyran-4-yl)thiophen-3-yl]methyl}amino)benzoic acid (250 mg) synthesized in Example 268 (5), ethyl 3-(methylamino)propanoate (92.1 mg), 1-hydroxybenzotriazole monohydrate (108 mg) and triethylamine (98 μL) in N,N-dimethylformamide (10 mL) was added 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (135 mg), and the mixture was stirred at room temperature for 3 hr. Saturated aqueous ammonium chloride solution was added to quench the reaction, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was purified by NH-silica gel column chromatography (ethyl acetate) to give a colorless oil. To a mixture of the obtained oil, tetrahydrofuran (5 mL) and ethanol (5 mL) was added 1N aqueous sodium hydroxide solution (1 mL), and the mixture was stirred at room temperature for 4 hr, and concentrated under reduced pressure. The residue was dissolved in water (10 mL), and 1N hydrochloric acid (1 mL) was added at 0° C. The resulting precipitate was collected by filtration to give the title compound (160 mg, 53%) as a white solid.

Workup

  1. customto quench
  2. customthe reaction
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe extract was washed with saturated brine
  5. dry with materialdried over magnesium sulfate
  6. concentrationconcentrated under reduced pressure
  7. customThe residue was purified by NH-silica gel column chromatography (ethyl acetate)
  8. customto give a colorless oil
  9. stirringthe mixture was stirred at room temperature for 4 hr
  10. concentrationconcentrated under reduced pressure
  11. dissolutionThe residue was dissolved in water (10 mL)
  12. addition1N hydrochloric acid (1 mL) was added at 0° C
  13. filtrationThe resulting precipitate was collected by filtration

Sources & evidence

ORD record
ord-9c02e0201a574b0788896f574ce17496
Source dataset
uspto-grants-2012_11
Patent number
US08309580B2

Reaction notes

Loading…