Diethyl Pyrocarbonate → 2-[(4-chlorophenyl)sulfonyl-ethyl-amino]-N-[[2-pyrrolidin-1-yl-6-[4-(trifluoromethyl)phenyl]-4-pyridyl]methyl]prop-2-enamide

HRID 1479826Notes

Reaction equation

HRID 1479826 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.[N:30]1([C:35]2[CH:40]=[C:39]([CH2:41][NH2:42])[CH:38]=[C:37]([C:43]3[CH:48]=[CH:47][C:46]([C:49]([F:52])([F:51])[F:50])=[CH:45][CH:44]=3)[N:36]=2)[CH2:34][CH2:33][CH2:32][CH2:31]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:42][CH2:41][C:39]2[CH:38]=[C:37]([C:43]3[CH:44]=[CH:45][C:46]([C:49]([F:52])([F:50])[F:51])=[CH:47][CH:48]=3)[N:36]=[C:35]([N:30]3[CH2:31][CH2:32][CH2:33][CH2:34]3)[CH:40]=2)=[O:15])(=[O:9])=[O:10])=[CH:6][CH:7]=1

Participants

5

Reactant 3

HCID 3051Diethyl PyrocarbonateHCID 66832317[2-Pyrrolidin-1-yl-6-[4-(trifluoromethyl)phenyl]-4-pyridyl]methanamineHCID 1317365862-[(4-Chlorophenyl)sulfonyl-ethyl-amino]prop-2-enoic acid

Product 1

HCID 783205262-[(4-chlorophenyl)sulfonyl-ethyl-amino]-N-[[2-pyrrolidin-1-yl-6-[4-(trifluoromethyl)phenyl]-4-pyridyl]methyl]prop-2-enamideYield 23.6%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

Acid 4D (289.74 mg, 1 mmol) was dissolved in 10 ml of THF and at rt DEPC (1.1 equiv, 0.15 ml) and [2-pyrrolidin-1-yl-6-[4-(trifluoromethyl)phenyl]-4-pyridyl]methanamine 27A (1.1 equiv., 353.47 mg) were added to the solution. The mixture was stirred at rt overnight then evaporated. The residue was dissolved in AcOEt (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 140 mg of a pale yellow solid. Yield=23.6% 1HNMR (DMSO, 200 MHz) δ 1.09 (3H, t), 1.91 (4H, m), 3.38 (6H, m), 4.40 (2H, d), 5.17 (1H, s), 6.11 (1H, d), 6.34 (1H, s), 7.19 (1H, s), 7.78 (6H, m), 8.28 (2H, d), 8.80 (1H, bt) [M+1] 593.9 (C28H28ClF3N4O3S requires 593.06).

Workup

  1. additionwere added to the solution
  2. customthen evaporated
  3. dissolutionThe residue was dissolved in AcOEt (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-2657cf782ff841ea8629413f4f20abee
Source dataset
uspto-grants-2016_08
Patent number
US09409864B2

Reaction notes

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