Potassium Carbonate → (R)-2-(6-(4-(1,3,4-oxadiazol-2-yl)phenylamino)-5-cyanopyrazin-2-ylamino)butanamide

HRID 2200456Notes

Reaction equation

HRID 2200456 reaction equation
Cl[C:2]1[N:7]=[C:6]([NH:8][C@H:9]([CH2:13][CH3:14])[C:10]([NH2:12])=[O:11])[CH:5]=[N:4][C:3]=1[C:15]#[N:16].[O:17]1[CH:21]=[N:20][N:19]=[C:18]1[C:22]1[CH:28]=[CH:27][C:25]([NH2:26])=[CH:24][CH:23]=1.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]>[O:17]1[CH:21]=[N:20][N:19]=[C:18]1[C:22]1[CH:28]=[CH:27][C:25]([NH:26][C:2]2[N:7]=[C:6]([NH:8][C@H:9]([CH2:13][CH3:14])[C:10]([NH2:12])=[O:11])[CH:5]=[N:4][C:3]=2[C:15]#[N:16])=[CH:24][CH:23]=1

Participants

7

Reactant 4

HCID 11430Potassium CarbonateHCID 634876Binap, (A+-)-HCID 162280964-(1,3,4-Oxadiazol-2-yl)anilineHCID 86685581(R)-2-(6-chloro-5-cyanopyrazin-2-ylamino)butanamide

Product 1

HCID 86685582(R)-2-(6-(4-(1,3,4-oxadiazol-2-yl)phenylamino)-5-cyanopyrazin-2-ylamino)butanamideYield 53.6%

Reagents, catalysts & solvents 2

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

Procedure

A mixture of (R)-2-(6-chloro-5-cyanopyrazin-2-ylamino)butanamide (70 mg, 0.292 mmol), 4-(1,3,4-oxadiazol-2-yl)aniline (60 mg, 0.372 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 20 h. The mixture was concentrated in vacuo. The residue was purified by HPLC to give (R)-2-(6-(4-(1,3,4-oxadiazol-2-yl)phenylamino)-5-cyanopyrazin-2-ylamino)butanamide (57 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-4fe9b1376d6749528306bdee8b18f217
Source dataset
uspto-grants-2016_06
Patent number
US09359308B2

Reaction notes

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