Phosgene → 5-sulfonylamino-3-(N-methylpyrrolidin-2-ylmethyl)-1H-indole

HRID 745003Notes

Reaction equation

HRID 745003 reaction equation
[NH2:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[NH:7][CH:6]=[C:5]2[CH2:11][C@H:12]1[CH2:16][CH2:15][CH2:14][N:13]1[CH3:17].C(N(CC)CC)C.[C:25](Cl)(Cl)=[O:26].[S:29](Cl)(Cl)(=[O:31])=[O:30]>C(#N)C>[C:25](=[N:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[NH:7][CH:6]=[C:5]2[CH2:11][CH:12]1[CH2:16][CH2:15][CH2:14][N:13]1[CH3:17])=[O:26].[S:29](=[N:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[NH:7][CH:6]=[C:5]2[CH2:11][CH:12]1[CH2:16][CH2:15][CH2:14][N:13]1[CH3:17])(=[O:31])=[O:30]

Participants

7

Reactant 4

HCID 6371PhosgeneHCID 8471TriethylamineHCID 24648Sulfuryl chlorideHCID 10376533(R)-5-Amino-3-(N-methylpyrrolidin-2-ylmethyl)-1H-indole

Product 2

HCID 199702555-sulfonylamino-3-(N-methylpyrrolidin-2-ylmethyl)-1H-indoleHCID 867497155-carbonylamino-3-(N-methylpyrrolidin-2-ylmethyl)-1H-indole

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

To a stirred solution of (R)-5-amino-3-(N-methylpyrrolidin-2-ylmethyl)indole (0.229 g, 1.00 mmol) and triethylamine (0.21 mL, 1.5 mmol, 1.5 eq) in anhydrous acetonitrile (3 mL) at 0° C. under nitrogen was added the appropriate carbonyl chloride or sulfonyl chloride (1.5 mmol, 1.5 eq). The resulting reaction mixture was stirred at room temperature for 12 hours. The reaction mixture was then evaporated under reduced pressure, and the residue was column chromatographed using silica gel (approximately 25 g) and elution with an appropriate solvent system afforded the appropriate 5-carbonylamino-3-(N-methylpyrrolidin-2-ylmethyl)-1H-indole or 5-sulfonylamino-3-(N-methylpyrrolidin-2-ylmethyl)-1H-indole.

Workup

  1. customThe resulting reaction mixture
  2. customThe reaction mixture was then evaporated under reduced pressure
  3. customchromatographed
  4. washsilica gel (approximately 25 g) and elution with an appropriate solvent system

Sources & evidence

ORD record
ord-23b3d01c411d440db14e637c7680a5c2
Source dataset
uspto-grants-1996_09
Patent number
US05559246

Reaction notes

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