Triethylamine → (R)-Methyl 6-(1-amino-4-methyl-1-oxopentan-2-ylamino)-4-cyano-2-(3-(methylsulfonyl)phenylamino)nicotinate

HRID 2092789Notes

Reaction equation

HRID 2092789 reaction equation
Cl[C:2]1[CH:11]=[C:10]([C:12]#[N:13])[C:5]([C:6]([O:8][CH3:9])=[O:7])=[C:4]([NH:14][C:15]2[CH:20]=[CH:19][CH:18]=[C:17]([S:21]([CH3:24])(=[O:23])=[O:22])[CH:16]=2)[N:3]=1.[NH2:25][C@H:26]([CH2:30][CH:31]([CH3:33])[CH3:32])[C:27]([NH2:29])=[O:28].CCN(CC)CC.C([O-])(O)=O.[Na+]>CN(C=O)C>[NH2:29][C:27](=[O:28])[C@H:26]([NH:25][C:2]1[CH:11]=[C:10]([C:12]#[N:13])[C:5]([C:6]([O:8][CH3:9])=[O:7])=[C:4]([NH:14][C:15]2[CH:20]=[CH:19][CH:18]=[C:17]([S:21]([CH3:24])(=[O:23])=[O:22])[CH:16]=2)[N:3]=1)[CH2:30][CH:31]([CH3:33])[CH3:32]

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 516892Sodium BicarbonateHCID 7271815(R)-2-Amino-4-methylpentanamideHCID 58317716Methyl 6-chloro-4-cyano-2-(3-(methylsulfonyl)phenylamino)nicotinate

Product 1

HCID 67239420(R)-Methyl 6-(1-amino-4-methyl-1-oxopentan-2-ylamino)-4-cyano-2-(3-(methylsulfonyl)phenylamino)nicotinateYield 50.1%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
60 °C

Procedure

A mixture of methyl 6-chloro-4-cyano-2-(3-(methylsulfonyl)phenylamino)nicotinate (120.7 mg, 0.330 mmol), (R)-2-amino-4-methylpentanamide (67.1 mg, 0.515 mmol), and Et3N (0.1 mL, 0.717 mmol) in DMF (4 mL) was stirred at 60° C. for 14 h. Saturated aq NaHCO3 (20 mL) was added to the mixture, which was subsequently extracted with EtOAc (2×30 mL). The organic layers were washed with saturated aq NaHCO3 (20 mL), water (20 mL) and brine (20 mL), were dried over anhydrous Na2SO4, and filtered (DM1020). The filtrate was concentrated under reduced pressure. The residue was purified by column chromatography (SiO2, hexanes/EtOAc=1/2) and then triturated with IPE to give the title compound (76 mg, 50%).

Workup

  1. extractionwas subsequently extracted with EtOAc (2×30 mL)
  2. washThe organic layers were washed with saturated aq NaHCO3 (20 mL), water (20 mL) and brine (20 mL)
  3. dry with materialwere dried over anhydrous Na2SO4
  4. filtrationfiltered (DM1020)
  5. concentrationThe filtrate was concentrated under reduced pressure
  6. customThe residue was purified by column chromatography (SiO2, hexanes/EtOAc=1/2)
  7. customtriturated with IPE

Sources & evidence

ORD record
ord-806165290b1c4011b45c9a4251a76a35
Source dataset
uspto-grants-2013_05
Patent number
US08440689B2

Reaction notes

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