Ethanol → 3-[3-(3-Butyl-2-thiazolidinyl)-1,2-benzisothiazol-5-yl]-1-methyl-6-(trifluoromethyl)uracil

HRID 49012Notes

Reaction equation

HRID 49012 reaction equation
[CH3:1][N:2]1[C:7]([C:8]([F:11])([F:10])[F:9])=[CH:6][C:5](=[O:12])[N:4]([C:13]2[CH:14]=[CH:15][C:16]3[S:20][N:19]=[C:18]([CH:21]=O)[C:17]=3[CH:23]=2)[C:3]1=[O:24].[CH2:25]([NH:29][CH2:30][CH2:31][SH:32])[CH2:26][CH2:27][CH3:28].C(O)C>O1CCCC1>[CH2:25]([N:29]1[CH2:30][CH2:31][S:32][CH:21]1[C:18]1[C:17]2[CH:23]=[C:13]([N:4]3[C:5](=[O:12])[CH:6]=[C:7]([C:8]([F:9])([F:11])[F:10])[N:2]([CH3:1])[C:3]3=[O:24])[CH:14]=[CH:15][C:16]=2[S:20][N:19]=1)[CH2:26][CH2:27][CH3:28]

Participants

5

Reactant 3

HCID 702EthanolHCID 15202-(Butylamino)ethanethiolHCID 178523685-[3,6-dihydro-3-methyl-2,6-dioxo-4-(trifluoromethyl)-1(2H)-pyrimidinyl]-1, 2-benzisothiazole-3-carboxaldehyde

Product 1

HCID 206342633-[3-(3-Butyl-2-thiazolidinyl)-1,2-benzisothiazol-5-yl]-1-methyl-6-(trifluoromethyl)uracilYield 31.7%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A mixture of 5-[3,6-dihydro-3-methyl-2,6-dioxo-4-(trifluoromethyl)-1(2H)-pyrimidinyl]-1,2-benzisothiazole-3-carboxaldehyde (0.500 g, 1.41 mmol), 2-(butylamino)ethanethiol (0.250 ml, 1.69 mmol), ethanol and tetrahydrofuran is stirred overnight at room temperature and concentrated in vacuo. The residue is chromatographed on silica gel with ethyl acetate-hexanes to afford the title compound as a light yellow solid (0.210 g, 31.7%, mp 78-82° C.) which is identified by NMR spectral analysis.

Workup

  1. concentrationconcentrated in vacuo
  2. customThe residue is chromatographed on silica gel with ethyl acetate-hexanes

Sources & evidence

ORD record
ord-a7b65faa0c574df58a67c2be5f7c214c
Source dataset
uspto-grants-2004_03
Patent number
US06706663B2

Reaction notes

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