Acetic Acid → HCID 22181327, compound

HRID 1796527Notes

Reaction equation

HRID 1796527 reaction equation
[CH:1]1([CH2:4][N:5]2[C:9]3=[N:10][CH:11]=[C:12]([NH:14][CH3:15])[CH:13]=[C:8]3[N:7]=[C:6]2[CH2:16][C:17]2[CH:22]=[CH:21][C:20]([O:23][CH2:24][CH3:25])=[CH:19][CH:18]=2)[CH2:3][CH2:2]1.C(N(CC)CC)C.[C:33]1([S:39](Cl)(=[O:41])=[O:40])[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=1.CC(O)=O>C(#N)C>[CH:1]1([CH2:4][N:5]2[C:9]3=[N:10][CH:11]=[C:12]([N:14]([CH3:15])[S:39]([C:33]4[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=4)(=[O:41])=[O:40])[CH:13]=[C:8]3[N:7]=[C:6]2[CH2:16][C:17]2[CH:22]=[CH:21][C:20]([O:23][CH2:24][CH3:25])=[CH:19][CH:18]=2)[CH2:3][CH2:2]1

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 7369Benzenesulfonyl chlorideHCID 8471TriethylamineHCID 22181289HCID 22181289, compound

Product 1

HCID 22181327HCID 22181327, compoundYield 17%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

To a solution of 3-(cyclopropylmethyl)-2-[(4-ethoxyphenyl)methyl]-N-methyl-3H-imidazo[4,5-b]pyridin-6-amine (237.0 mg, 0.70 mmol) in acetonitrile (5 mL) at room temperature was added triethylamine (196 μL, 1.41 mmol) followed by benzenesulfonyl chloride (156 mL, 0.92 mmol). The mixture was stirred overnight. The reaction mixture was concentrated in vacuo. The residue was dissolved into EtOAc (10 ml) and Na2CO3 saturated aqueous solution (10 mL). The phases were separated and the aqueous phase was back-extracted with additional EtOAc (10 mL). The organic phases were combined, dried with MgSO4, filtered and concentrated in vacuo. The residue was purified using preparative HPLC (C-18 column, 20 to 80% [0.1% AcOH in AcCN solution] in 0.1% AcOH aqueous solution) to provide 63 mg of the AcOH salt of the title compound N-[3-(cyclopropylmethyl)-2-[(4-ethoxyphenyl)methyl]-3H-imidazo[4,5-b]pyridin-6-yl]-N-methyl-benzenesulfonamide (17% yield from 3-(cyclopropylmethyl)-2-[(4-ethoxyphenyl)methyl]-N-methyl-3H-imidazo[4,5-b]pyridin-6-amine). 1H-NMR (400 MHz, d3-MeOD): δ 0.37 (m, 2H), 0.42 (m, 2H), 1.10 (m, 1H), 1.35 (t, J=7.0 Hz, 3H), 3.31 (s, 3H), 3.99 (t, J=7.0 Hz, 2H), 4.10 (d, J=7.2 Hz, 2H), 4.32 (s, 2H), 6.86 (d, J=8.6 Hz, 2H), 7.17 (d, J=8.6 Hz, 2H), 7.55 (m, 2H), 7.57 (m, 2H), 7.59 (m, 1H), 7.70 (m, 1H), 8.11 (d, J=2.2 Hz, 1H). MS (ESI) (M+H)+: 477.

Workup

  1. concentrationThe reaction mixture was concentrated in vacuo
  2. dissolutionThe residue was dissolved into EtOAc (10 ml) and Na2CO3 saturated aqueous solution (10 mL)
  3. customThe phases were separated
  4. extractionthe aqueous phase was back-extracted with additional EtOAc (10 mL)
  5. dry with materialdried with MgSO4
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo
  8. customThe residue was purified

Sources & evidence

ORD record
ord-51cf2c9b3b3f46eeb1b342c706d2bab3
Source dataset
uspto-grants-2006_04
Patent number
US07030139B2

Reaction notes

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