Methyl iodide → 6-[(3-{[Tert-butyl(dimethyl)silyl]oxy}propyl)(methyl)amino]-2-chloro-5-fluoronicotinonitrile

HRID 603472ノート

反応式

HRID 603472 の反応式
[H-].[Na+].[Si:3]([O:10][CH2:11][CH2:12][CH2:13][NH:14][C:15]1[C:22]([F:23])=[CH:21][C:18]([C:19]#[N:20])=[C:17]([Cl:24])[N:16]=1)([C:6]([CH3:9])([CH3:8])[CH3:7])([CH3:5])[CH3:4].[CH3:25]I>CN(C=O)C>[Si:3]([O:10][CH2:11][CH2:12][CH2:13][N:14]([CH3:25])[C:15]1[C:22]([F:23])=[CH:21][C:18]([C:19]#[N:20])=[C:17]([Cl:24])[N:16]=1)([C:6]([CH3:8])([CH3:9])[CH3:7])([CH3:5])[CH3:4]

参加物

5

反応物 3

HCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 866045976-[(3-{[Tert-butyl(dimethyl)silyl]oxy}propyl)amino]-2-chloro-5-fluoronicotinonitrile

生成物 1

HCID 866045996-[(3-{[Tert-butyl(dimethyl)silyl]oxy}propyl)(methyl)amino]-2-chloro-5-fluoronicotinonitrile収率 105.5%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

Sodium hydride (0.11 g, 4.65 mmol) was added to a solution of 6-[(3-{[tert-butyl(dimethyl)-I4-silyl]oxy}propyl)amino]-2-chloro-5-fluoronicotinonitrile (Example 309, 0.80 g, 2.33 mmol) in DMF (23.26 mL). The mixture was stirred at rt for 30 min, and then MeI (0.58 mL, 9.30 mmol) added. The reaction mixture was stirred at rt for 18 h, quenched with water, and the aqueous phase was extracted with ether. The combined ether extracts were washed with water, brine, and then dried (MgSO4), filtered, and concentrated under reduced pressure. The product (0.88 g, 99%) was isolated after silica gel flash chromatography (2:1 hexanes/EtOAc). 1H NMR (400 MHz, CD3OD) δ 7.53 (d, 1H), 3.70-3.60 (m, 4H), 3.17 (d, 3H), 1.84-1.76 (m, 2H), 0.84 (s, 9H), 0.00 (s, 6H).

後処理

  1. stirringThe reaction mixture was stirred at rt for 18 h
  2. customquenched with water
  3. extractionthe aqueous phase was extracted with ether
  4. washThe combined ether extracts were washed with water, brine
  5. dry with materialdried (MgSO4)
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure

出典と根拠

ORDレコード
ord-cfaff047b4754e808ae4235074524778
出典データセット
uspto-grants-2011_03
特許番号
US07906653B2

反応ノート

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