Dichloromethane → HCID 42637837, compound

HRID 2364229Notes

Reaction equation

HRID 2364229 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][C:9]2[CH:10]=[C:11]([NH:20][CH:21]=[C:22]([CH3:24])[CH3:23])[C:12]([C:15]([O:17][CH2:18][CH3:19])=[O:16])=[N:13][CH:14]=2)=[CH:4][CH:3]=1.Cl[C:26](=[O:33])[CH2:27][C:28]([O:30][CH2:31][CH3:32])=[O:29].ClCCl.C(=O)(O)[O-].[Na+]>ClCCCl>[CH2:31]([O:30][C:28](=[O:29])[CH2:27][C:26]([N:20]([CH2:21][CH:22]([CH3:23])[CH3:24])[C:11]1[C:12]([C:15]([O:17][CH2:18][CH3:19])=[O:16])=[N:13][CH:14]=[C:9]([CH2:8][C:5]2[CH:4]=[CH:3][C:2]([F:1])=[CH:7][CH:6]=2)[CH:10]=1)=[O:33])[CH3:32]

Participants

6

Reactant 4

HCID 6344DichloromethaneHCID 118931Ethyl 3-chloro-3-oxopropionateHCID 516892Sodium BicarbonateHCID 69482102HCID 69482102, compound

Product 1

HCID 42637837HCID 42637837, compoundYield 55%

Reagents, catalysts & solvents 1

HCID 111,2-DichloroethaneSolvent

Procedure

To a solution of ethyl 5-[(4-fluorophenyl)methyl]-3-3-[(2-methylpropyl)amino]-3-2-pyridinecarboxylate and ethyl 5-[(4-fluorophenyl)methyl]-3-[(2-methyl-1-propen-1-yl)amino]-2-pyridinecarboxylate (˜1.7:1 mixture, 419 mg, 1.3 mmol) in 1,2-dichloroethane (15 mL) was added ethyl 3-chloro-3-oxopropanoate (0.25 mL, 90%, 1.9 mmol). The resultant solution was heated at 85° C. for 5 hours. Upon cooling to room temperature, dichloromethane and saturated aqueous sodium bicarbonate were added and the layers separated. The organic layer was washed with brine. The aqueous layers were extracted with dichloromethane and the combined organics dried over sodium sulfate. Filtration and concentration followed by silica gel chromatography provided ethyl 3-[[3-(ethyloxy)-3-oxopropanoyl](2-methylpropyl)amino]-5-[(4-fluorophenyl)methyl]-2-pyridinecarboxylate (309 mg, 55%). 1H NMR (CDCl3) δ 8.56 (s, 1 H), 7.45 (s, 1 H), 7.10 (m, 2 H), 6.99 (m, 2 H), 4.39 (q, J=7.2 Hz, 2 H), 4.02-3.97 (m, 5 H), 3.15 (d, J=15.6 Hz, 1 H), 3.04 (d, J=15.6 Hz, 1 H), 2.81 (dd, J=13.6, 6.0 Hz, 1 H), 1.62 (m, 1 H), 1.36 (t, J=7.2 Hz, 3 H), 1.16 (t, J=6.8 Hz, 3 H), 0.90 (d, J=6.4 Hz, 3 H), 0.81 (d, J=6.4 Hz, 3 H); MS: m/z 445 (M+1). Further elution provided ethyl 3-[[3-(ethyloxy)-3-oxopropanoyl](2-methyl-1-propen-1-yl)amino]-5-[(4-fluorophenyl)methyl]-2-pyridinecarboxylate (115 mg, 21%). 1H NMR (CDCl3) δ 8.37 (s, 1 H), 7.32 (s, 1 H), 7.07 (m, 2 H), 6.97 (m, 2 H), 6.15 (s, 1 H), 4.39 (q, J=7.2 Hz, 2 H), 4.18 (q, J=7.2 Hz, 2 H), 3.48 (s, 2 H), 1.70 (s, 3 H), 1.59 (s, 3 H), 1.38 (t, J=7.2 Hz, 3 H), 1.25 (t, J=7.2 Hz, 3 H); MS: m/z 445 (M+1).

Workup

  1. customthe layers separated
  2. washThe organic layer was washed with brine
  3. extractionThe aqueous layers were extracted with dichloromethane
  4. dry with materialthe combined organics dried over sodium sulfate
  5. filtrationFiltration and concentration

Sources & evidence

ORD record
ord-63a8646e2885407bb7bb606c93503762
Source dataset
uspto-grants-2014_04
Patent number
US08691991B2

Reaction notes

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