Triethylamine → HCID 71616300, compound

HRID 930838Notes

Reaction equation

HRID 930838 reaction equation
[NH2:1][C:2]1[CH:3]=[CH:4][C:5]([O:19][C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)=[C:6]([C:8]2[C:9]3[CH:18]=[CH:17][NH:16][C:10]=3[C:11](=[O:15])[N:12]([CH3:14])[CH:13]=2)[CH:7]=1.C(N(CC)CC)C.[CH3:33][S:34](Cl)(=[O:36])=[O:35]>ClCCl>[CH3:14][N:12]1[CH:13]=[C:8]([C:6]2[CH:7]=[C:2]([NH:1][S:34]([CH3:33])(=[O:36])=[O:35])[CH:3]=[CH:4][C:5]=2[O:19][C:20]2[CH:21]=[CH:22][CH:23]=[CH:24][CH:25]=2)[C:9]2[CH:18]=[CH:17][NH:16][C:10]=2[C:11]1=[O:15]

Participants

5

Procedure

To a solution of Example 3 (0.125 g, 0.377 mmol) and triethylamine (0.131 mL, 0.943 mmol) in dichloromethane (3.0 mL) was added dropwise methanesulfonyl chloride (0.064 mL, 0.830 mmol). The reaction mixture was stirred for 2 hours at ambient temperature and then concentrated. The residue was dissolved in a mixture of dioxane (5 mL) and 1M sodium hydroxide (2 mL) and heated for 1 hour at 90° C. The reaction mixture was cooled and diluted with ethyl acetate, brought to pH 7 with 1 M HCl and partitioned. The organic layer was washed with brine, dried (Na2SO4), filtered, and concentrated. The residue was purified by flash chromatography (silica gel, 0-4% methanol in dichloromethane) to afford 0.20 g (77%) of the title compound. 1H NMR (300 MHz, DMSO-d6) δ 3.02 (s, 3H) 3.48 (s, 3H) 6.23-6.30 (m, 1H) 6.85 (d, J=7.46 Hz, 2H) 6.99 (t, J=7.29 Hz, 1H) 7.04 (d, J=8.82 Hz, 1H) 7.20-7.29 (m, 5H) 7.39 (d, J=2.71 Hz, 1H) 9.72 (s, 1H) 12.01 (s, 1H). MS (ESI+) m/z 410 [M+H]+.

Workup

  1. concentrationconcentrated
  2. dissolutionThe residue was dissolved in a mixture of dioxane (5 mL) and 1M sodium hydroxide (2 mL)
  3. temperatureheated for 1 hour at 90° C
  4. temperatureThe reaction mixture was cooled
  5. additiondiluted with ethyl acetate
  6. custompartitioned
  7. washThe organic layer was washed with brine
  8. dry with materialdried (Na2SO4)
  9. filtrationfiltered
  10. concentrationconcentrated
  11. customThe residue was purified by flash chromatography (silica gel, 0-4% methanol in dichloromethane)

Sources & evidence

ORD record
ord-c5878e7154e44551975ad5756b8489f5
Source dataset
uspto-grants-2016_03
Patent number
US09296741B2

Reaction notes

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