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Hydrochloric Acid → (2r)-N-Hydroxy-2-Methyl-2-(Methylsulfonyl)-4-(2-Oxo-4-Phenylpyridin-1(2h)-Yl)butanamide

HRID 709221
ノート
印刷プレビュー

反応式

HRID 709221 の反応式
Cl.[CH3:2][C@@:3]([S:29]([CH3:32])(=[O:31])=[O:30])([CH2:14][CH2:15][N:16]1[CH:21]=[CH:20][C:19]([C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)=[CH:18][C:17]1=[O:28])[C:4]([NH:6][O:7]C1CCCCO1)=[O:5]>O1CCOCC1.O>[OH:7][NH:6][C:4](=[O:5])[C@:3]([CH3:2])([S:29]([CH3:32])(=[O:31])=[O:30])[CH2:14][CH2:15][N:16]1[CH:21]=[CH:20][C:19]([C:22]2[CH:23]=[CH:24][CH:25]=[CH:26][CH:27]=2)=[CH:18][C:17]1=[O:28]
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 2

HCID 313Hydrochloric AcidHCID 57326796(2R)-2-Methyl-2-(methylsulfonyl)-4-(2-oxo-4-phenylpyridin-1(2H)-yl)-N-(tetrahydro-2H-pyran-2-yloxy)butanamide

生成物 1

HCID 56593152(2r)-N-Hydroxy-2-Methyl-2-(Methylsulfonyl)-4-(2-Oxo-4-Phenylpyridin-1(2h)-Yl)butanamide

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 312751,4-Dioxane溶媒

実験手順

HCl (4.0 N in 1,4-dioxane, 20 mL) was added to a solution of (2R)-2-Methyl-2-(methylsulfonyl)-4-(2-oxo-4-phenylpyridin-1(2H)-yl)-N-(tetrahydro-2H-pyran-2-yloxy)butanamide (5.15 g, 11.5 mmol) in 1,4-dioxane (100 mL) and water (20 mL). The reaction was continued for 2 hours. The reaction was concentrated in vacuo, upon concentration a white solid precipitated. The solid was triturated with 2-propanol (150 mL) at 50° C. for 30 minutes then collected by filtration. The title compound was obtained as a white solid (3.85 g, 92%) LC-MS m/z 365.5 (M+1). 1H NMR (400 MHz, DMSO-d6) δ ppm 1.58 (s, 3H) 2.10-2.23 (m, 1H) 2.37-2.48 (m, 1H) 3.11 (s, 3H) 3.69-3.82 (m, 1H) 4.04-4.19 (m, 1H) 6.63-6.68 (m, 1H) 6.70 (d, J=1.76 Hz, 1H) 7.41-7.55 (m, 3H) 7.68-7.75 (m, 2H) 7.77 (d, J=6.83 Hz, 1H) 11.17 (br. s., 1H). [α]58920=+33.21°.

後処理

  1. concentrationThe reaction was concentrated in vacuo, upon concentration a white solid
  2. customprecipitated
  3. customThe solid was triturated with 2-propanol (150 mL) at 50° C. for 30 minutes
  4. filtrationthen collected by filtration

出典と根拠

ORDレコード
ord-e988bc008bf04295a17ad8be0608d0c2
出典データセット
uspto-grants-2015_11
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09180123B2

反応ノート

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