Sodium Iodide → 5-[4-[4-(4-Fluorobenzoyl)piperidino]butyl]-2-methyl-2,3,4,5-tetrahydropyrrolo[2,3-e][1,2]thiazin-4-one 1,1-dioxide

HRID 351975Notes

Reaction equation

HRID 351975 reaction equation
Cl[CH2:2][CH2:3][CH2:4][CH2:5][N:6]1[C:10]2[C:11](=[O:18])[CH2:12][N:13]([CH3:17])[S:14](=[O:16])(=[O:15])[C:9]=2[CH:8]=[CH:7]1.Cl.[F:20][C:21]1[CH:34]=[CH:33][C:24]([C:25]([CH:27]2[CH2:32][CH2:31][NH:30][CH2:29][CH2:28]2)=[O:26])=[CH:23][CH:22]=1.C(=O)([O-])O.[Na+].[I-].[Na+]>C(#N)C>[F:20][C:21]1[CH:22]=[CH:23][C:24]([C:25]([CH:27]2[CH2:32][CH2:31][N:30]([CH2:2][CH2:3][CH2:4][CH2:5][N:6]3[C:10]4[C:11](=[O:18])[CH2:12][N:13]([CH3:17])[S:14](=[O:16])(=[O:15])[C:9]=4[CH:8]=[CH:7]3)[CH2:29][CH2:28]2)=[O:26])=[CH:33][CH:34]=1

Participants

6

Reactant 4

HCID 5238Sodium IodideHCID 516892Sodium BicarbonateHCID 3084438p-Fluorophenyl 4-piperidyl ketone hydrochlorideHCID 227149655-(4-Chlorobutyl)-2-methyl-2,3,4,5-tetrahydropyrrolo[2,3-e][1,2]thiazin-4-one 1,1-dioxide

Product 1

HCID 98043455-[4-[4-(4-Fluorobenzoyl)piperidino]butyl]-2-methyl-2,3,4,5-tetrahydropyrrolo[2,3-e][1,2]thiazin-4-one 1,1-dioxideYield 95.3%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

A suspension of 145 mg (0.5 mmol) of Compound 17, 134 mg (0.55 mmol) of 4-(4-fluorobenzoyl)piperidine hydrochloride, 185 mg (2.2 mmol) of sodium hydrogencarbonate and 165 mg (1.1 mmol) of sodium iodide in 20 ml of acetonitrile was refluxed for 50 hours. Post-treatment was conducted in a similar manner as in Example 18. The residue was purified by chromatography on a silica gel column (eluent: methanol/chloroform=3/97), whereby 220 mg of the title compound were obtained (yield: 95%).

Workup

  1. temperaturewas refluxed for 50 hours
  2. customThe residue was purified by chromatography on a silica gel column (eluent: methanol/chloroform=3/97)

Sources & evidence

ORD record
ord-130ed4ff02e94513b2b0c8b16b8bf4b0
Source dataset
uspto-grants-2004_06
Patent number
US06743913B2

Reaction notes

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