Diethyl Pyrocarbonate → 2-[(4-chlorophenyl)sulfonyl-ethyl-amino]-N-[[2-[4-(trifluoromethoxy)phenyl]-4-pyridyl]methyl]prop-2-enamide

HRID 1479815Notes

Reaction equation

HRID 1479815 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([N:11]([CH2:17][CH3:18])[C:12](=[CH2:16])[C:13]([OH:15])=O)(=[O:10])=[O:9])=[CH:4][CH:3]=1.CCOC(OC(OCC)=O)=O.[F:30][C:31]([F:48])([F:47])[O:32][C:33]1[CH:38]=[CH:37][C:36]([C:39]2[CH:44]=[C:43]([CH2:45][NH2:46])[CH:42]=[CH:41][N:40]=2)=[CH:35][CH:34]=1>C1COCC1>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([S:8]([N:11]([CH2:17][CH3:18])[C:12](=[CH2:16])[C:13]([NH:46][CH2:45][C:43]2[CH:42]=[CH:41][N:40]=[C:39]([C:36]3[CH:35]=[CH:34][C:33]([O:32][C:31]([F:48])([F:30])[F:47])=[CH:38][CH:37]=3)[CH:44]=2)=[O:15])(=[O:9])=[O:10])=[CH:6][CH:7]=1

Participants

5

Reactant 3

HCID 3051Diethyl PyrocarbonateHCID 68759664[2-[4-(Trifluoromethoxy)phenyl]-4-pyridyl]methanamineHCID 1317365862-[(4-Chlorophenyl)sulfonyl-ethyl-amino]prop-2-enoic acid

Product 1

HCID 783199122-[(4-chlorophenyl)sulfonyl-ethyl-amino]-N-[[2-[4-(trifluoromethoxy)phenyl]-4-pyridyl]methyl]prop-2-enamideYield 18.5%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

Acid 4D (221.45 mg, 1 mmol) was dissolved in 10 ml of THF and at rt DEPC (1.1 equiv, 0.15 ml) and [2-[4-(trifluoromethoxy)phenyl]-4-pyridyl]methanamine 21B (1.1 equiv., 295 mg) were added to the solution. The mixture was stirred at rt overnight then evaporated. The residue was dissolved in EtOAc (30 ml) and washed with water (1×20 ml) and brine. The organic phase was dried over sodium sulfate and concentrated under vacuum. The purification of the crude by chromatographic column (3:7 EtOAc:petroleum ether) afforded 100 mg of a white solid. Yield=18.5% 1HNMR (DMSO, 400 MHz) δ 1.08 (3H, t), 3.40 (2H, q), 4.42 (2H, d), 5.20 (1H, s), 6.08 (1H, s), 7.23 (1H, d), 7.45 (2H, d), 7.72 (4H, dd), 7.85 (1H, s), 8.20 (2H, d), 8.60 (1H, d), 8.74 (1H, bt) [M+1] 540.1 (C24H21ClF3N3O4S requires 539.95).

Workup

  1. additionwere added to the solution
  2. customthen evaporated
  3. dissolutionThe residue was dissolved in EtOAc (30 ml)
  4. washwashed with water (1×20 ml) and brine
  5. dry with materialThe organic phase was dried over sodium sulfate
  6. concentrationconcentrated under vacuum
  7. customThe purification of the crude by chromatographic column (3:7 EtOAc:petroleum ether)

Sources & evidence

ORD record
ord-d2f0263cf6854cb5a0dcacc249fb0619
Source dataset
uspto-grants-2016_08
Patent number
US09409864B2

Reaction notes

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