3-Aminoquinoline → (R)-2-(5-cyano-6-(quinolin-3-ylamino)pyrazin-2-ylamino)-4-methylpentanamide

HRID 332717Notes

Reaction equation

HRID 332717 reaction equation
Cl[C:2]1[N:7]=[C:6]([NH:8][C@H:9]([CH2:13][CH:14]([CH3:16])[CH3:15])[C:10]([NH2:12])=[O:11])[CH:5]=[N:4][C:3]=1[C:17]#[N:18].[NH2:19][C:20]1[CH:21]=[N:22][C:23]2[C:28]([CH:29]=1)=[CH:27][CH:26]=[CH:25][CH:24]=2.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]>[C:17]([C:3]1[N:4]=[CH:5][C:6]([NH:8][C@H:9]([CH2:13][CH:14]([CH3:16])[CH3:15])[C:10]([NH2:12])=[O:11])=[N:7][C:2]=1[NH:19][C:20]1[CH:21]=[N:22][C:23]2[C:28]([CH:29]=1)=[CH:27][CH:26]=[CH:25][CH:24]=2)#[N:18]

Participants

7

Reactant 4

HCID 113753-AminoquinolineHCID 11430Potassium CarbonateHCID 634876Binap, (A+-)-HCID 86685528(R)-2-(6-chloro-5-cyanopyrazin-2-ylamino)-4-methylpentanamide

Product 1

HCID 86685529(R)-2-(5-cyano-6-(quinolin-3-ylamino)pyrazin-2-ylamino)-4-methylpentanamide

Reagents, catalysts & solvents 2

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

Procedure

A mixture of (R)-2-(6-chloro-5-cyanopyrazin-2-ylamino)-4-methylpentanamide (70 mg, 0.261 mmol), 3-aminoquinoline (60 mg, 0.416 mmol), K2CO3 (60 mg, 0.434 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 100 C for 20 h. Water and EtOAc were added. Organic phase was separated, dried over Na2SO4, concentrated in vacuo to give (R)-2-(5-cyano-6-(quinolin-3-ylamino)pyrazin-2-ylamino)-4-methylpentanamide as a crude residue (131 mg). The crude (R)-2-(5-cyano-6-(quinolin-3-ylamino)pyrazin-2-ylamino)-4-methylpentanamide (131 mg) was dissolved in EtOH (2 mL) and DMSO (1 mL), aq. 1N NaOH (1.0 mL) and aq. H2O2 (50%, 1.0 mL) were added. The mixture was stirred at room temperature for 30 min. HOAc (0.5 mL) was added. The mixture was then concentrated in vacuo. The residue was purified by HPLC to give the titled compound (30 mg). MS 394.4 (M+H); UV 201.1, 247.4, 297.8, 352.3 nm; t 0.476 min.

Workup

  1. customwas degassed with Ar
  2. additionWater and EtOAc were added
  3. customOrganic phase was separated
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-065320652cab492a868afcc021590bb6
Source dataset
uspto-grants-2014_11
Patent number
US08877760B2

Reaction notes

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