Diisopropylcarbodiimide → 2-[4-(5-Chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-4-methoxy-N-(2-oxo-2,3-dihydro-1H-benzimidazol-5-yl)butanamide

HRID 57053

Reaction equation

HRID 57053 reaction equation
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([C:25]#[N:26])=[C:6]([C:8]2[C:13]([O:14][CH3:15])=[CH:12][N:11]([CH:16]([CH2:20][CH2:21][O:22][CH3:23])[C:17]([OH:19])=O)[C:10](=[O:24])[CH:9]=2)[CH:7]=1.[NH2:27][C:28]1[CH:37]=[CH:36][C:31]2=[N:32][C:33](=[O:35])[N:34]=[C:30]2[CH:29]=1.CC(C)N=C=NC(C)C>CN(C)C=O>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([C:25]#[N:26])=[C:6]([C:8]2[C:13]([O:14][CH3:15])=[CH:12][N:11]([CH:16]([CH2:20][CH2:21][O:22][CH3:23])[C:17]([NH:27][C:28]3[CH:37]=[CH:36][C:31]4[NH:32][C:33](=[O:35])[NH:34][C:30]=4[CH:29]=3)=[O:19])[C:10](=[O:24])[CH:9]=2)[CH:7]=1

Participants

5

Reactant 3

HCID 12734DiisopropylcarbodiimideHCID 152505475-amino-2H-1,3-benzodiazol-2-oneHCID 1176229442-[4-(5-Chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-4-methoxybutanoic acid

Product 1

HCID 1176229562-[4-(5-Chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-4-methoxy-N-(2-oxo-2,3-dihydro-1H-benzimidazol-5-yl)butanamide

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

70 mg (186 μmol) of 2-[4-(5-chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-4-methoxybutanoic acid (racemate), 27.7 mg (186 μmol, 1.0 eq.) of 5-aminobenzimidazolone, 26.4 mg (186 μmol) of Oxima and 28.9 μl (186 μmol) of DIC in 3.9 ml of dimethylformamide were reacted according to General Method 5. The crude product was purified by preparative HPLC (column: Chromatorex 125 mm×30 mm, 10 μm, mobile phase: water/0.1% formic acid and acetonitrile/0.1% formic acid, gradient 10% acetonitrile to 90% acetonitrile) and then subjected to basic extraction (aqueous sodium hydroxide solution/ethyl acetate). Yield: 44 mg (47% of theory)

Workup

  1. customThe crude product was purified by preparative HPLC (column: Chromatorex 125 mm×30 mm, 10 μm, mobile phase: water/0.1% formic acid and acetonitrile/0.1% formic acid, gradient 10% acetonitrile to 90% acetonitrile)
  2. extractionsubjected to basic extraction (aqueous sodium hydroxide solution/ethyl acetate)

Sources & evidence

ORD record
ord-b5f01503dc334bb1aa5fa871c713b8dc
Source dataset
uspto-grants-2016_09
Patent number
US09434690B2

Linked notes

Loading…