Methyl iodide → HCID 86610584, compound

HRID 506353Notes

Reaction equation

HRID 506353 reaction equation
[CH2:1]([O:3][C:4]([N:6]1[C:15]2[C:10](=[N:11][C:12]([O:16][CH3:17])=[CH:13][CH:14]=2)[C@@H:9]([NH:18][C:19]2[N:24]=[C:23]([CH2:25][C:26]3[CH:31]=[C:30]([C:32]([F:35])([F:34])[F:33])[CH:29]=[C:28]([C:36]([F:39])([F:38])[F:37])[CH:27]=3)[C:22]([CH2:40][OH:41])=[CH:21][N:20]=2)[CH2:8][C@H:7]1[CH2:42][CH3:43])=[O:5])[CH3:2].[H-].[Na+].CI.[C:48](=O)([O-])O.[Na+]>O1CCCC1>[CH2:1]([O:3][C:4]([N:6]1[C:15]2[C:10](=[N:11][C:12]([O:16][CH3:17])=[CH:13][CH:14]=2)[C@@H:9]([NH:18][C:19]2[N:24]=[C:23]([CH2:25][C:26]3[CH:27]=[C:28]([C:36]([F:37])([F:38])[F:39])[CH:29]=[C:30]([C:32]([F:35])([F:33])[F:34])[CH:31]=3)[C:22]([CH2:40][O:41][CH3:48])=[CH:21][N:20]=2)[CH2:8][C@H:7]1[CH2:42][CH3:43])=[O:5])[CH3:2]

Participants

6

Reactant 4

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 516892Sodium BicarbonateHCID 86610583HCID 86610583, compound

Product 1

HCID 86610584HCID 86610584, compound

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

(2R*,4S*)-4-{[3,5-Bis(trifluoromethyl)benzyl]-(5-hydroxymethylpyrimidin-2-yl)}amino-2-ethyl-6-methoxy-3,4-dihydro-2H-[1,5]naphthyridine-1-carboxylic acid ethyl ester (150 mg) is dissolved in tetrahydrofuran (4 ml), then thereto are added sodium hydride (12 mg) and methyl iodide (0.02 ml) under ice-cooling, and the mixture is stirred at room temperature for 3 hours and 30 minutes. A saturated aqueous sodium hydrogen carbonate solution is added to the reaction solution and the mixture is extracted with ethyl acetate. The organic layer is washed with a saturated brine, dried over magnesium sulfate, and concentrated under reduced pressure. The resulting residue is purified by column chromatography (silica gel; hexane: ethyl acetate=4:1→3:2) to give (2R*,4S*)-4-{[3,5-bis(trifluoromethyl)benzyl]-(5-methoxymethylpyrimidin-2-yl)}amino-2-ethyl-6-methoxy-3,4-dihydro-2H-[1,5]naphthyridine-1-carboxylic acid ethyl ester (92 mg). MS (m/z): 628 [M+H]+

Workup

  1. temperaturecooling
  2. extractionthe mixture is extracted with ethyl acetate
  3. washThe organic layer is washed with a saturated brine
  4. dry with materialdried over magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe resulting residue is purified by column chromatography (silica gel; hexane: ethyl acetate=4:1→3:2)

Sources & evidence

ORD record
ord-fba8640435cb45d0a190bf590ddaf68e
Source dataset
uspto-grants-2010_08
Patent number
US07781443B2

Reaction notes

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