Piperidine → N-(5-Fluoro-2-oxo-2,3-dihydro-1H-indol-6-yl)-2-methoxyacetamide

HRID 1811262Notes

Reaction equation

HRID 1811262 reaction equation
[NH2:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6](=CC3NC4CCN(CCN(CC)CC)C(=O)C=4C=3C)[C:7](=[O:11])[NH:8]2)=[CH:4][C:3]=1[F:31].N1CCCCC1.[CH3:38][O:39][CH2:40][C:41](Cl)=[O:42]>O1CCCC1>[F:31][C:3]1[CH:4]=[C:5]2[C:9](=[CH:10][C:2]=1[NH:1][C:41](=[O:42])[CH2:40][O:39][CH3:38])[NH:8][C:7](=[O:11])[CH2:6]2

Participants

5

Reactant 3

HCID 8082PiperidineHCID 96623Methoxyacetyl chlorideHCID 666072882-(6-Amino-5-fluoro-2-oxo-1,2-dihydro-indol-3-ylidenemethyl)-5-(2-diethylamino-ethyl)-3-methyl-1,5,6,7-tetrahydro-pyrrolo[3,2-c]pyridin-4-one

Product 1

HCID 45118148N-(5-Fluoro-2-oxo-2,3-dihydro-1H-indol-6-yl)-2-methoxyacetamideYield 69.2%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Conditions

Temperature
-50 °C

Procedure

A stirred solution of d 6-amino-5-fluoro-1,3-dihydro-indol-2-one (2.028 g, 12.2 mmol) obtained from Example 7 in 30 ml of tetrahydrofuran was added with piperidine (1.3 ml). The mixture was cooled to −50° C. in an ethanol-dry ice bath and added with methoxyacetyl chloride (1.35 g, 12.5 mmol) in 20 ml of tetrahydrofuran dropwise. Upon the completion of the addition, the resulting mixture was stirred at the room temperature overnight until the precipitate was formed. The solid was filtered, washed with water and recrystallized from methanol to give N-(5-fluoro-2-oxo-2,3-dihydro-1H-indol-6-yl)-2-methoxy-acetamide (2.0 g, 69.2%) as a white solid.

Workup

  1. additionUpon the completion of the addition
  2. customwas formed
  3. filtrationThe solid was filtered
  4. washwashed with water
  5. customrecrystallized from methanol

Sources & evidence

ORD record
ord-f771d17ca4cf440f80cf61bae4b32dc1
Source dataset
uspto-grants-2013_01
Patent number
US08362251B2

Reaction notes

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