Potassium Carbonate → 5-((1R,2R)-2-amino-3,3-difluorocyclohexylamino)-3-(4-cyanophenylamino)pyrazine-2-carbonitrile

HRID 2200437Notes

Reaction equation

HRID 2200437 reaction equation
[NH2:1][C@H:2]1[C:7]([F:9])([F:8])[CH2:6][CH2:5][CH2:4][C@H:3]1[NH:10][C:11]1[N:12]=[C:13](Cl)[C:14]([C:17]#[N:18])=[N:15][CH:16]=1.[C:20]([C:22]1[CH:28]=[CH:27][C:25]([NH2:26])=[CH:24][CH:23]=1)#[N:21].C([O-])([O-])=O.[K+].[K+].C1C=CC(P(C2C(C3C(P(C4C=CC=CC=4)C4C=CC=CC=4)=CC=C4C=3C=CC=C4)=C3C(C=CC=C3)=CC=2)C2C=CC=CC=2)=CC=1>O1CCOCC1.CC([O-])=O.CC([O-])=O.[Pd+2]>[NH2:1][C@H:2]1[C:7]([F:9])([F:8])[CH2:6][CH2:5][CH2:4][C@H:3]1[NH:10][C:11]1[N:12]=[C:13]([NH:26][C:25]2[CH:27]=[CH:28][C:22]([C:20]#[N:21])=[CH:23][CH:24]=2)[C:14]([C:17]#[N:18])=[N:15][CH:16]=1

Participants

7

Reactant 4

HCID 11430Potassium CarbonateHCID 133964-AminobenzonitrileHCID 634876Binap, (A+-)-HCID 866855565-((1R,2R)-2-amino-3,3-difluorocyclohexylamino)-3-chloropyrazine-2-carbonitrile

Product 1

HCID 866855675-((1R,2R)-2-amino-3,3-difluorocyclohexylamino)-3-(4-cyanophenylamino)pyrazine-2-carbonitrileYield 37.9%

Reagents, catalysts & solvents 2

HCID 167845palladium(II) acetateCatalystHCID 312751,4-DioxaneSolvent

Procedure

A mixture of 5-((1R,2R)-2-amino-3,3-difluorocyclohexylamino)-3-chloropyrazine-2-carbonitrile (74 mg, 0.257 mmol), 4-cyanoaniline (40 mg, 0.339 mmol), K2CO3 (80 mg, 0.579 mmol), BINAP (25 mg, 0.040 mmol) and Pd(OAc)2 (10 mg, 0.044 mmol) in dioxane (2 mL) was degassed with Ar, then was stirred at 110 C for 4 h. The mixture was concentrated in vacuo. The residue was purified by HPLC to give 5-((1R,2R)-2-amino-3,3-difluorocyclohexylamino)-3-(4-cyanophenylamino)pyrazine-2-carbonitrile (36 mg).

Workup

  1. customwas degassed with Ar
  2. concentrationThe mixture was concentrated in vacuo
  3. customThe residue was purified by HPLC

Sources & evidence

ORD record
ord-5f665f811a5746e497199653f5bf8402
Source dataset
uspto-grants-2016_06
Patent number
US09359308B2

Reaction notes

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