Hydrochloric Acid → (2R)-N-hydroxy-2-methyl-2-(methylsulfonyl)-4-{2-oxo-4-[4-(1H-pyrazol-1-yl)phenyl]pyridin-1(2H)-yl}butanamide

HRID 84216ノート

反応式

HRID 84216 の反応式
Cl.[CH3:2][C@@:3]([S:34]([CH3:37])(=[O:36])=[O:35])([CH2:14][CH2:15][N:16]1[CH:21]=[CH:20][C:19]([C:22]2[CH:27]=[CH:26][C:25]([N:28]3[CH:32]=[CH:31][CH:30]=[N:29]3)=[CH:24][CH:23]=2)=[CH:18][C:17]1=[O:33])[C:4]([NH:6][O:7]C1CCCCO1)=[O:5]>ClCCl.CO>[OH:7][NH:6][C:4](=[O:5])[C@:3]([CH3:2])([S:34]([CH3:37])(=[O:36])=[O:35])[CH2:14][CH2:15][N:16]1[CH:21]=[CH:20][C:19]([C:22]2[CH:23]=[CH:24][C:25]([N:28]3[CH:32]=[CH:31][CH:30]=[N:29]3)=[CH:26][CH:27]=2)=[CH:18][C:17]1=[O:33]

参加物

5

反応物 2

HCID 313Hydrochloric AcidHCID 86671907(2R)-2-methyl-2-(methylsulfonyl)-4-{2-oxo-4-[4-(1H-pyrazol-1-yl)phenyl]pyridin-1(2H)-yl}-N-(tetrahydro-2H-pyran-2-yloxy)butanamide

生成物 1

HCID 86671908(2R)-N-hydroxy-2-methyl-2-(methylsulfonyl)-4-{2-oxo-4-[4-(1H-pyrazol-1-yl)phenyl]pyridin-1(2H)-yl}butanamide収率 99.3%

試薬・触媒・溶媒 2

HCID 887Methanol溶媒HCID 6344Dichloromethane溶媒

実験手順

A solution of hydrochloric acid (3.0 mL, 4.0 M in 1,4-dioxane) was added dropwise to a solution of (2R)-2-methyl-2-(methylsulfonyl)-4-{2-oxo-4-[4-(1H-pyrazol-1-yl)phenyl]pyridin-1(2H)-yl}-N-(tetrahydro-2H-pyran-2-yloxy)butanamide (58 mg, 0.11 mmol) in dichloromethane (3.0 mL) and methanol (0.6 mL) at 0° C. After 2 h, the reaction was concentrated under reduced pressure. The resulting residue was triturated with diethyl ether, filtered, washed with heptane, and dried under reduced pressure to provide a light yellow solid (47 mg, 98%). MS (APCI) m/z 431.3 (M+1). 1H NMR (400 MHz, CD3OD) δ ppm 1.71 (s, 3H), 2.36-2.43 (m, 1H), 2.59-2.68 (m, 1H), 3.09 (s, 3H), 3.96-4.05 (m 1H), 4.30-4.40 (m, 1H), 6.56 (dd, J=1.8, 2.3 Hz, 1H), 6.93-6.95 (m, 2H), 7.76 (d, J=1.8 Hz, 1H), 7.82-7.92 (m, 5H), 8.31 (d, J=2.3, 1H).

後処理

  1. concentrationthe reaction was concentrated under reduced pressure
  2. customThe resulting residue was triturated with diethyl ether
  3. filtrationfiltered
  4. washwashed with heptane
  5. customdried under reduced pressure

出典と根拠

ORDレコード
ord-bf0a9e6e10cd4572b4fafa4e11b7e471
出典データセット
uspto-grants-2014_09
特許番号
US08846933B2

反応ノート

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