Sodium Hydroxide → [4,6-Bis(dimethylamino)-2-{4-[4-(trifluoromethyl)benzamido]benzyl}-5-pyrimidinyl]acetic acid
Reaction equation
C[O:2][C:3](=[O:37])[CH2:4][C:5]1[C:6]([N:34]([CH3:36])[CH3:35])=[N:7][C:8]([CH2:14][C:15]2[CH:20]=[CH:19][C:18]([NH:21][C:22](=[O:33])[C:23]3[CH:28]=[CH:27][C:26]([C:29]([F:32])([F:31])[F:30])=[CH:25][CH:24]=3)=[CH:17][CH:16]=2)=[N:9][C:10]=1[N:11]([CH3:13])[CH3:12].[OH-].[Na+]>O1CCCC1.CO>[CH3:36][N:34]([CH3:35])[C:6]1[C:5]([CH2:4][C:3]([OH:37])=[O:2])=[C:10]([N:11]([CH3:12])[CH3:13])[N:9]=[C:8]([CH2:14][C:15]2[CH:16]=[CH:17][C:18]([NH:21][C:22](=[O:33])[C:23]3[CH:24]=[CH:25][C:26]([C:29]([F:31])([F:32])[F:30])=[CH:27][CH:28]=3)=[CH:19][CH:20]=2)[N:7]=1Participants
Procedure
A solution of methyl[4,6-bis(dimethylamino)-2-(4-{[4-(trifluoromethyl)benzoyl]amino}-benzyl)pyrimidin-5-yl]acetate (4.34 g, 8.42 mmol) in 20% tetrahydrofuran in methanol (100 mL) was treated with 1N sodium hydroxide solution (25 mL). The resulting mixture was heated at refluxing temperature for 5 hours and then the volatiles were removed by rotary evaporation under vacuum. The remaining aqueous solution was washed with diethyl ether and then neutralized with 1N hydrochloric acid at 0° C. The separated precipitate was collected by suction and rinsed with cold water. Recrystallization from methanol then gave [4,6-bis(dimethylamino)-2-(4-{[4-(trifluoromethyl)benzoyl]amino}benzyl)pyrimidin-5-yl]acetic acid (3.86 g, 81%) as colorless needles.
Workup
- temperatureThe resulting mixture was heated
- temperatureat refluxing temperature for 5 hours
- customthe volatiles were removed by rotary evaporation under vacuum
- washThe remaining aqueous solution was washed with diethyl ether
- customneutralized with 1N hydrochloric acid at 0° C
- customThe separated precipitate was collected by suction
- washrinsed with cold water
- customRecrystallization from methanol
Sources & evidence
- ORD record
- ord-5742c87761fa4b7da012956290f6c576
- Source dataset
- uspto-grants-2011_06
- Patent number
- US07960393B2
Reaction notes
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