Acetyl chloride → HCID 178473060, compound

HRID 2173948Notes

Reaction equation

HRID 2173948 reaction equation
[C:1]([C:3]1[CH:34]=[CH:33][C:6]2[NH:7][C:8]([C:10]([C:21]3[C:29]([O:30][CH3:31])=[CH:28][C:27]([CH3:32])=[C:26]4[C:22]=3[CH:23]=[CH:24][NH:25]4)([O:15][CH2:16][C:17]([O:19][CH3:20])=[O:18])[C:11]([F:14])([F:13])[F:12])=[N:9][C:5]=2[CH:4]=1)#[N:2].[C:35](Cl)(=O)C.C(=O)(O)[O-].[Na+]>C(O)C>[C:1]([C:3]1[CH:34]=[CH:33][C:6]2[NH:7][C:8]([C:10]([C:21]3[C:29]([O:30][CH3:31])=[CH:28][C:27]([CH3:32])=[C:26]4[C:22]=3[CH:23]=[CH:24][NH:25]4)([O:15][CH2:16][C:17]([O:19][CH2:20][CH3:35])=[O:18])[C:11]([F:12])([F:13])[F:14])=[N:9][C:5]=2[CH:4]=1)#[N:2]

Participants

5

Reactant 3

HCID 6367Acetyl chlorideHCID 516892Sodium BicarbonateHCID 178501803HCID 178501803, compound

Product 1

HCID 178473060HCID 178473060, compound

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent2×

Procedure

(+) or (−)-Methyl 2-(1-(5-cyano-1H-benzo[d]imidazol-2-yl)-2,2,2-trifluoro-1-(5-methoxy-7-methyl-1H-indol-4-yl)ethoxy)acetate (tr=3.5 min—from Example 35-B) (54 mg, 0.114 mmol) was dissolved in ethanol (2.0 mL). This solution was added to a mixture of acetyl chloride (1.0 mL) in ethanol (20.0 mL) at 0° C. This mixture was gradually warmed to room temperature and stirred for 16 hr. The reaction solution was basified with saturated sodium bicarbonate solution and the majority of the ethanol was removed in vacuo. The resulting reaction mixture was partitioned between ethyl acetate and water. The layers were separated and the organic layer was washed with brine, dried over sodium sulfate, filtered, and concentrated. This material was purified using FCC eluting with ethyl acetate/heptane (0-60%) to afford the title compound. 1H NMR (400 MHz, DMSO-d6) δ ppm 12.89 (br.s., 1H) 11.09 (br. s., 1H) 8.26 (s, 1H) 7.83-8.06 (m, 1H) 7.49-7.73 (m, 1H) 7.38 (t, J=2.78 Hz, 1H) 6.91-6.96 (m, 1H) 6.74 (s, 1H) 3.98-4.36 (m, 2H) 3.73-3.97 (m, 2H) 3.04-3.06 (s, 3H) 2.47-2.50 (s, 3H) 0.97-1.08 (m, 3H) HRMS calcd. for C24H21F3N4O4 (M+H)+ 487.1548. found 487.1576.

Workup

  1. customthe majority of the ethanol was removed in vacuo
  2. customThe resulting reaction mixture
  3. customwas partitioned between ethyl acetate and water
  4. customThe layers were separated
  5. washthe organic layer was washed with brine
  6. dry with materialdried over sodium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customThis material was purified
  10. washeluting with ethyl acetate/heptane (0-60%)

Sources & evidence

ORD record
ord-74999d1dbccc4f029a3fcc40e32cf266
Source dataset
uspto-grants-2015_06
Patent number
US09056874B2

Reaction notes

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