Hydrochloric Acid → 4-[4-(Benzyloxy)-2-oxopyridin-1(2H)-yl]-N-hydroxy-2-methyl-2-(methylsulfonyl)butanamide

HRID 84273ノート

反応式

HRID 84273 の反応式
[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][N:12]([CH2:15][CH2:16][C:17]([CH3:32])([S:28]([CH3:31])(=[O:30])=[O:29])[C:18]([NH:20][O:21]C2CCCCO2)=[O:19])[C:11](=[O:33])[CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Cl.CO>C(Cl)Cl>[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][N:12]([CH2:15][CH2:16][C:17]([CH3:32])([S:28]([CH3:31])(=[O:29])=[O:30])[C:18]([NH:20][OH:21])=[O:19])[C:11](=[O:33])[CH:10]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

参加物

5

反応物 3

HCID 313Hydrochloric AcidHCID 887MethanolHCID 866719504-(4-(Benzyloxy)-2-oxopyridin-1(2h)-yl)-2-methyl-2-(methylsulfonyl)-N-(tetrahydro-2h-pyran-2-yloxy)butanamide

生成物 1

HCID 866719514-[4-(Benzyloxy)-2-oxopyridin-1(2H)-yl]-N-hydroxy-2-methyl-2-(methylsulfonyl)butanamide収率 26.7%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

4-[4-(Benzyloxy)-2-oxopyridin-1(2H)-yl]-2-methyl-2-(methylsulfonyl)-N-(tetrahydro-2H-pyran-2-yloxy)butanamide (536.3 mg, 1.12 mmol) was dissolved in methylene chloride (5 mL) at ambient temperature. To this solution was added HCl (4M in 1,4-dioxane, 8.41 mL, 30 mmol) and the slurry was stirred at RT for 15 minutes. Methanol (1 mL) was added followed by silica gel and the mixture was concentrated to dryness. The crude material purified via silica gel chromatography eluting with methylene chloride/methanol to afford title compound as a solid 117.8 mg. LCMS: (M+1) 395.3 1H NMR (CD3OD) 7.51 (1H, d, J=7.62 Hz), 7.42-7.32 (5H, m), 6.18 (1H, dd, J=7.42, J=2.73), 5.09 (2H, s), 4.21-4.13 (1H, m), 3.85-3.77 (1H, m), 3.08 (3H, s), 2.53-2.45 (1H, m), 2.32-2.25 (1H, m), 1.65 (3H, s) ppm.

後処理

  1. concentrationthe mixture was concentrated to dryness
  2. customThe crude material purified via silica gel chromatography
  3. washeluting with methylene chloride/methanol

出典と根拠

ORDレコード
ord-f26b051d695748da9e306d349f84d03b
出典データセット
uspto-grants-2014_09
特許番号
US08846933B2

反応ノート

読み込み中…