Acetic Anhydride → HCID 57933980, compound

HRID 2423587Notes

Reaction equation

HRID 2423587 reaction equation
BrC1C=CC(O)=CC=1N(CC)CC1C=CC(OCCN2CCCCC2)=C(F)C=1.[C:29]([N:32]([CH2:44][C:45]1[CH:50]=[CH:49][C:48]([O:51][CH2:52][CH2:53][N:54]2[CH2:59][CH2:58][CH2:57][CH2:56][CH2:55]2)=[C:47]([F:60])[CH:46]=1)[C:33]1[CH:34]=[C:35]([O:40][C:41](=[O:43])[CH3:42])[CH:36]=[CH:37][C:38]=1[Br:39])(=O)[CH3:30].C(OC(=O)C)(=O)C.C(=O)(O)[O-].[Na+]>N1C=CC=CC=1>[Br:39][C:38]1[CH:37]=[CH:36][C:35]([O:40][C:41](=[O:43])[CH3:42])=[CH:34][C:33]=1[N:32]([CH2:29][CH3:30])[CH2:44][C:45]1[CH:50]=[CH:49][C:48]([O:51][CH2:52][CH2:53][N:54]2[CH2:55][CH2:56][CH2:57][CH2:58][CH2:59]2)=[C:47]([F:60])[CH:46]=1

Participants

6

Reactant 4

HCID 7918Acetic AnhydrideHCID 516892Sodium BicarbonateHCID 57934161HCID 57934161, compoundHCID 66627759HCID 66627759, compound

Product 1

HCID 57933980HCID 57933980, compoundYield 68.6%

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

To the total amount of 4-bromo-3-{ethyl[3-fluoro-4-(2-piperidin-1-ylethoxy)benzyl]amino}phenol crude product, which was synthesized from acetic acid 3-{acetyl-[3-fluoro-4-(2-piperidin-1-ylethoxy)benzyl]amino}-4-bromophenyl ester (300 mg) synthesized according to an analogous synthetic method to Example 337 described below, were added pyridine (3 ml) and acetic anhydride (3 ml), and the solution was stirred overnight at room temperature. To reaction mixture was added a saturated aqueous solution of sodium bicarbonate, the solution was extracted with ethyl acetate, then washed with brine, dried over anhydrous magnesium sulfate, and then the solvent was evaporated in vacuo. The residue was purified by silica gel column chromatography (chloroform-methanol system) to provide the title compound (200 mg).

Workup

  1. customsynthesized
  2. customTo reaction mixture
  3. extractionthe solution was extracted with ethyl acetate
  4. washwashed with brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customthe solvent was evaporated in vacuo
  7. customThe residue was purified by silica gel column chromatography (chloroform-methanol system)

Sources & evidence

ORD record
ord-3cff0026690e424391999b7f3ebd2285
Source dataset
uspto-grants-2011_06
Patent number
US07960412B2

Reaction notes

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