Pyridine → HCID 67444144, compound

HRID 1400961Notes

Reaction equation

HRID 1400961 reaction equation
[CH:1]1([NH:4][C:5]([NH:7][C:8]2[CH:13]=[CH:12][C:11]([O:14][C:15]3[CH:20]=[CH:19][N:18]=[C:17]4[CH:21]=[C:22]([C:24]5[CH:29]=[CH:28][C:27]([CH2:30][N:31]6[CH2:36][CH2:35][NH:34][CH2:33][CH2:32]6)=[CH:26][N:25]=5)[S:23][C:16]=34)=[C:10]([F:37])[CH:9]=2)=[O:6])[CH2:3][CH2:2]1.N1C=CC=CC=1.[C:44](Cl)(=[O:55])[O:45][C:46]1[CH:51]=[CH:50][C:49]([N+:52]([O-:54])=[O:53])=[CH:48][CH:47]=1>CN(C=O)C.[NH4+].[Cl-]>[CH:1]1([NH:4][C:5](=[O:6])[NH:7][C:8]2[CH:13]=[CH:12][C:11]([O:14][C:15]3[CH:20]=[CH:19][N:18]=[C:17]4[CH:21]=[C:22]([C:24]5[N:25]=[CH:26][C:27]([CH2:30][N:31]6[CH2:32][CH2:33][N:34]([C:44]([O:45][C:46]7[CH:47]=[CH:48][C:49]([N+:52]([O-:54])=[O:53])=[CH:50][CH:51]=7)=[O:55])[CH2:35][CH2:36]6)=[CH:28][CH:29]=5)[S:23][C:16]=34)=[C:10]([F:37])[CH:9]=2)[CH2:3][CH2:2]1

Participants

6

Procedure

To a solution of compound 49 (0.50 g, 0.96 mmol, scheme 15) and pyridine (0.11 g, 1.4 mmol) in DMF (4 mL) was added 4-nitrophenyl chlorocarbonate (0.23 g, 1.1 mmol). The resultant mixture was stirred at room temperature for 1 h, diluted with saturated NH4Cl aqueous solution and extracted with EtOAc-THF (4:1 mixture). The organic layer was collected, washed with saturated NaHCO3 aqueous solution, water and brine, dried over MgSO4 and concentrated. The residue was triturated with t-BuOMe, to afford title compound 595 (0.42 g, 64% yield) as a beige solid. 1H NMR (300 MHz, DMSO-d6) δ (ppm): 8.72 (s, 1H), 8.60 (s, 1H), 8.53 (d, J=5.4 Hz, 1H), 8.35 (s, 1H), 8.30-8.26 (m, 3H), 7.91 (d, J=8.1 Hz, 1H), 7.74 (dd, J=2.4, 10.8 Hz, 1H), 7.45 (d, J=8.7 Hz, 2H), 7.39 (t, J=9.0 Hz, 1H), 7.21 (d, J=9.0 Hz, 1H), 6.66 (d, J=5.1 Hz, 1H), 6.58 (s, 1H), 3.65 (brs, 4H), 3.49 (brs, 2H), 3.34 (brs, 4H), 2.58-2.54 (m, 1H), 0.70-0.63 (m, 2H), 0.47-0.43 (m, 2H).

Workup

  1. extractionextracted with EtOAc-THF (4:1 mixture)
  2. customThe organic layer was collected
  3. washwashed with saturated NaHCO3 aqueous solution, water and brine
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated
  6. customThe residue was triturated with t-BuOMe

Sources & evidence

ORD record
ord-c9e6bd943803402fb89f0646f842a146
Source dataset
uspto-grants-2014_12
Patent number
US08906852B2

Reaction notes

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