Hydrochloric Acid → 2-((4-Cyanophenyl)amino)-4-(propylamino)pyrimidine-5-carboxylic acid

HRID 2284654Notes

Reaction equation

[C:1]([C:3]1[CH:8]=[CH:7][C:6]([NH:9][C:10]2[N:15]=[C:14]([NH:16][CH2:17][CH2:18][CH3:19])[C:13]([C:20]([O:22]CC)=[O:21])=[CH:12][N:11]=2)=[CH:5][CH:4]=1)#[N:2].Cl>C(O)C.O1CCCC1.[OH-].[Na+]>[C:1]([C:3]1[CH:8]=[CH:7][C:6]([NH:9][C:10]2[N:15]=[C:14]([NH:16][CH2:17][CH2:18][CH3:19])[C:13]([C:20]([OH:22])=[O:21])=[CH:12][N:11]=2)=[CH:5][CH:4]=1)#[N:2]

Participants

Conditions

Temperature: 50 °C

Procedure

To a solution of ethyl 2-((4-cyanophenyl)amino)-4-(propylamino)pyrimidine-5-carboxylate (C4, 0.90 g) in ethanol (10 mL) and tetrahydrofuran (5 mL), 2.0 mol/L aqueous sodium hydroxide (2.8 mL) was added at room temperature, and the mixture was stirred at 50° C. for 5 hours. The reaction mixture was cooled to room temperature, and then 1.0 mol/L aqueous hydrochloric acid was added to the reaction mixture until the mixture became acidic. The solid matter was taken by filtration, washed with water, and then dried under reduced pressure to obtain 2-((4-cyanophenyl)amino)-4-(propylamino)pyrimidine-5-carboxylic acid (C5, 738 mg).

Workup

temperatureThe reaction mixture was cooled to room temperature
filtrationThe solid matter was taken by filtration
washwashed with water
customdried under reduced pressure

Sources & evidence

ORD record: ord-31d98e3552374cffaf7a3e3294ebc1c7
Source dataset: uspto-grants-2015_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09145415B2

Reaction notes

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