Benzenesulfonic acid, 4-methyl-, compd. with pyridine (1:1) → HCID 86687020, compound

HRID 1402162Notes

Reaction equation

HRID 1402162 reaction equation
C1(C)C=CC(S([O-])(=O)=O)=CC=1.[NH+]1C=CC=CC=1.[C:18]([C:22]1[CH:23]=[C:24]([NH:43][C:44]([NH:46][C@@H:47]2[C:56]3[C:51](=[CH:52][CH:53]=[CH:54][CH:55]=3)[C@H:50]([O:57][C:58]3[CH:59]=[CH:60][C:61]4[N:62]([C:64]([N:67]5[CH2:72][CH2:71][CH2:70][CH2:69][CH2:68]5)=[N:65][N:66]=4)[CH:63]=3)[CH2:49][CH2:48]2)=[O:45])[N:25]([C:27]2[CH:32]=[CH:31][CH:30]=[C:29]([O:33][CH2:34][CH2:35][O:36]C3CCCCO3)[CH:28]=2)[N:26]=1)([CH3:21])([CH3:20])[CH3:19]>CO.O>[C:18]([C:22]1[CH:23]=[C:24]([NH:43][C:44]([NH:46][C@@H:47]2[C:56]3[C:51](=[CH:52][CH:53]=[CH:54][CH:55]=3)[C@H:50]([O:57][C:58]3[CH:59]=[CH:60][C:61]4[N:62]([C:64]([N:67]5[CH2:72][CH2:71][CH2:70][CH2:69][CH2:68]5)=[N:65][N:66]=4)[CH:63]=3)[CH2:49][CH2:48]2)=[O:45])[N:25]([C:27]2[CH:32]=[CH:31][CH:30]=[C:29]([O:33][CH2:34][CH2:35][OH:36])[CH:28]=2)[N:26]=1)([CH3:21])([CH3:19])[CH3:20]

Participants

5

Reactant 2

HCID 466102Benzenesulfonic acid, 4-methyl-, compd. with pyridine (1:1)HCID 86687021HCID 86687021, compound

Product 1

HCID 86687020HCID 86687020, compound

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 962WaterSolvent

Conditions

Temperature
40 °C

Procedure

Pyridinium p-toluenesulfonate (362 mg, 1.44 mmol) was added to a solution of Intermediate 39c (360 mg, 0.48 mmol) in MeOH (5 mL). The solution was stirred at 40° C. for 19 h, then diluted with water and extracted with DCM (3×20 mL). The combined organics were dried and concentrated in vacuo. The residue was purified by FCC, using 0-7.5% [2M NH3 in MeOH] in DCM, to give the title compound as a white powder after freeze-drying (218 mg, 68%). LCMS (Method 5): Rt 4.22 min, m/z 665 [MH+]. 1H NMR (400 MHz, d6-DMSO): 1.28 (9H, s), 1.60-1.63 (2H, m), 1.70-1.75 (4H, m), 1.86-1.92 (2H, m), 2.01-2.06 (1H, m), 2.10-2.16 (1H, m), 3.14 (4H, t, J 5.2), 3.71 (2H, q, J 5.1), 4.03 (2H, t, J 5.0), 4.79-4.82 (1H, m), 4.87 (1H, t, J 5.5), 5.54 (1H, t, J 4.3), 6.33 (1H, s), 6.96 (1H, m), 7.11-7.22 (4H, m), 7.34-7.46 (5H, m), 7.61-7.64 (2H, m), 8.11 (1H, s).

Workup

  1. extractionextracted with DCM (3×20 mL)
  2. customThe combined organics were dried
  3. concentrationconcentrated in vacuo
  4. customThe residue was purified by FCC

Sources & evidence

ORD record
ord-53e5382ba413491886f23f85c5adb533
Source dataset
uspto-grants-2014_12
Patent number
US08907094B2

Reaction notes

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