Benzocaine → Ethyl 4-({2-[4-(5-chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-4,4-difluorobutanoyl}amino)benzoate

HRID 56797Notes

Reaction equation

HRID 56797 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][CH:21]([F:23])[F:22])[C:17]([OH:19])=O)[C:10](=[O:24])[CH:9]=2)[CH:7]=1.[NH2:27][C:28]1[CH:38]=[CH:37][C:31]([C:32]([O:34][CH2:35][CH3:36])=[O:33])=[CH:30][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][CH:21]([F:23])[F:22])[C:17]([NH:27][C:28]3[CH:29]=[CH:30][C:31]([C:32]([O:34][CH2:35][CH3:36])=[O:33])=[CH:37][CH:38]=3)=[O:19])[C:10](=[O:24])[CH:9]=2)[CH:7]=1

Participants

5

Reactant 3

HCID 2337BenzocaineHCID 12734DiisopropylcarbodiimideHCID 1176225842-[4-(5-Chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-4,4-difluorobutanoic acid

Product 1

HCID 117622837Ethyl 4-({2-[4-(5-chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-4,4-difluorobutanoyl}amino)benzoate

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

97.0 mg (253 μmol) of 2-[4-(5-chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-4,4-difluorobutanoic acid (racemate), 42.0 mg (253 μmol) of ethyl 4-aminobenzoate, 36.0 mg (253 μmol) of Oxima and 39.0 μl (253 μmol) of DIC in 2.5 ml of dimethylformamide were reacted according to General Method 5B. The crude product was purified by preparative HPLC [column: Chromatorex C18, 10 μm, 125×30 mm, mobile phase: acetonitrile/0.05% formic acid gradient (0 to 3 min 10% acetonitrile, to 35 min 90% acetonitrile and a further 3 min 90% acetonitrile)]. Yield: 81.7 mg (60% of theory)

Workup

  1. customThe crude product was purified by preparative HPLC [column
  2. customa further 3 min 90% acetonitrile

Sources & evidence

ORD record
ord-7aa98a07968c40c28c18062ce527e6a4
Source dataset
uspto-grants-2016_09
Patent number
US09434690B2

Reaction notes

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