Sodium Carbonate → (S)-N2-[1-(4-fluorophenyl)ethyl]-6-[4-(methylsulfonyl)phenyl]-N4-(pyrazin-2-yl)pyrimidine-2,4-diamine

HRID 1187679Notes

Reaction equation

HRID 1187679 reaction equation
Cl[C:2]1[N:7]=[C:6]([NH:8][C@H:9]([C:11]2[CH:16]=[CH:15][C:14]([F:17])=[CH:13][CH:12]=2)[CH3:10])[N:5]=[C:4]([NH:18][C:19]2[CH:24]=[N:23][CH:22]=[CH:21][N:20]=2)[CH:3]=1.[CH3:25][S:26]([C:29]1[CH:34]=[CH:33][C:32](B(O)O)=[CH:31][CH:30]=1)(=[O:28])=[O:27].C(=O)([O-])[O-].[Na+].[Na+].O1CCOCC1>C(OCC)(=O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.O>[F:17][C:14]1[CH:15]=[CH:16][C:11]([C@@H:9]([NH:8][C:6]2[N:5]=[C:4]([NH:18][C:19]3[CH:24]=[N:23][CH:22]=[CH:21][N:20]=3)[CH:3]=[C:2]([C:32]3[CH:33]=[CH:34][C:29]([S:26]([CH3:25])(=[O:28])=[O:27])=[CH:30][CH:31]=3)[N:7]=2)[CH3:10])=[CH:12][CH:13]=1

Participants

8

Reactant 4

HCID 10340Sodium CarbonateHCID 312751,4-DioxaneHCID 27343644-(Methanesulfonyl)phenylboronic acidHCID 86659380(S)-6-Chloro-N2-[1-(4-fluorophenyl)ethyl]-N4-(pyrazin-2-yl)pyrimidine-2,4-diamine

Product 1

HCID 56837575(S)-N2-[1-(4-fluorophenyl)ethyl]-6-[4-(methylsulfonyl)phenyl]-N4-(pyrazin-2-yl)pyrimidine-2,4-diamineYield 92%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
100 °C

Procedure

100 mg of (S)-6-chloro-N2-[1-(4-fluorophenyl)ethyl]-N4-(pyrazin-2-yl)pyrimidine-2,4-diamine, 145 mg of 4-(methylsulfonyl)phenylboronic acid, 123 mg of sodium carbonate and 17 mg of tetrakis(triphenylphosphine)palladium were added in turn to a degassed mixed solvent of 3 ml of 1,4-dioxane and 1.2 ml of water, and the mixture was stirred at 100° C. for 3 hours under argon atmosphere. The reaction solution was diluted with ethyl acetate. The solution was washed in turn with water and brine and then dried over magnesium sulfate. The solvent was distilled off under reduced pressure, and then the obtained residue was purified by silica gel column chromatography to obtain 124 mg of (S)—N2-[1-(4-fluorophenyl)ethyl]-6-[4-(methylsulfonyl)phenyl]-N4-(pyrazin-2-yl)pyrimidine-2,4-diamine as white powder. The obtained compound was dissolved in methanol, and an equivalent of 1N hydrochloric acid was added thereto, and then the solvent was removed to obtain the objective compound as white powder.

Workup

  1. washThe solution was washed in turn with water and brine
  2. dry with materialdried over magnesium sulfate
  3. distillationThe solvent was distilled off under reduced pressure
  4. customthe obtained residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-67c61a45d263440e950acba2b28130de
Source dataset
uspto-grants-2014_03
Patent number
US08673891B2

Reaction notes

Loading…