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Aminopyrazine → (S)-5-{2-[1-(4-Fluorophenyl)ethylamino]-6-(pyrazin-2-ylamino)pyrimidin-4-yl}nicotinonitrile

HRID 2043432
Notes
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Reaction equation

HRID 2043432 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]([C:18]2[CH:19]=[N:20][CH:21]=[C:22]([CH:25]=2)[C:23]#[N:24])[CH:3]=1.[NH2:26][C:27]1[CH:32]=[N:31][CH:30]=[CH:29][N:28]=1.C1(P(C2CCCCC2)C2C=CC=CC=2C2C(C(C)C)=CC(C(C)C)=CC=2C(C)C)CCCCC1.CC(C)([O-])C.[Na+]>C1(C)C=CC=CC=1>[F:17][C:14]1[CH:15]=[CH:16][C:11]([C@@H:9]([NH:8][C:6]2[N:5]=[C:4]([C:18]3[CH:19]=[N:20][CH:21]=[C:22]([CH:25]=3)[C:23]#[N:24])[CH:3]=[C:2]([NH:26][C:27]3[CH:32]=[N:31][CH:30]=[CH:29][N:28]=3)[N:7]=2)[CH3:10])=[CH:12][CH:13]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 78747AminopyrazineHCID 111557942-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 23676156Sodium t-butoxideHCID 86659396(S)-5-{6-chloro-2-[1-(4-fluorophenyl)ethylamino]pyrimidin-4-yl}nicotinonitrile

Product 1

HCID 56840634(S)-5-{2-[1-(4-Fluorophenyl)ethylamino]-6-(pyrazin-2-ylamino)pyrimidin-4-yl}nicotinonitrile
Yield 32.8%

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Conditions

Temperature
100 °C

Procedure

55 mg of (S)-5-{6-chloro-2-[1-(4-fluorophenyl)ethylamino]pyrimidin-4-yl}nicotinonitrile, 16 mg of 2-aminopyrazine, 15 mg of 2-dicyclohexylphosphino-2′,4′,6′-triisopropylbiphenyl, 21 mg of sodium t-butoxide and 8 mg of tris(dibenzylideneacetone)(chloroform)dipalladium were added in turn to 2 ml of degassed toluene, and the mixture was stirred at 100° C. for 1 hour under argon atmosphere. The reaction solution was purified by silica gel column chromatography to obtain 21 mg of the objective compound as white powder.

Workup

  1. customThe reaction solution was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-0405abae55db444c93b1512a96f04458
Source dataset
uspto-grants-2013_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08586591B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes