Sodium Hydroxide → 4-({cyclohexyl[1-(3-ethoxyphenyl)-3-ethyl-1H-pyrazol-4-yl]methyl}amino)benzoic acid

HRID 2090972Notes

Reaction equation

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

Participants

Conditions

Temperature: 60 °C

Procedure

To a solution of methyl 4-({cyclohexyl[1-(3-ethoxyphenyl)-3-ethyl-1H-pyrazol-4-yl]methyl}amino)benzoate (0.34 g) synthesized in the above-mentioned (1) in ethanol (6.0 mL) was added 1N aqueous sodium hydroxide solution (6.0 mL), and the mixture was stirred at 60° C. for 6 hr. Ethanol was evaporated under reduced pressure, and 1N hydrochloric acid (8.0 mL) was added to the residue, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over magnesium sulfate, and concentrated under reduced pressure to give a crude product (0.33 g, quantitative) of the title object compound as a yellow oil.

Workup

customEthanol was evaporated under reduced pressure, and 1N hydrochloric acid (8.0 mL)
additionwas added to the residue
extractionthe mixture was extracted with ethyl acetate
washThe extract was washed with saturated brine
dry with materialdried over magnesium sulfate
concentrationconcentrated under reduced pressure

Sources & evidence

ORD record: ord-dee9b191018f417f87a89275264bfabf
Source dataset: uspto-grants-2013_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08436043B2

Reaction notes

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