Hydrochloric Acid → (R)-N-hydroxy-2-methyl-2-(methylsulfonyl)-4-(2-oxo-4-(phenylethynyl) pyridin-1(2H)-yl)butanamide

HRID 1475902Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1475902
Cl.[CH3:2][C@@:3]([S:31]([CH3:34])(=[O:33])=[O:32])([CH2:14][CH2:15][N:16]1[CH:21]=[CH:20][C:19]([C:22]#[C:23][C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)=[CH:18][C:17]1=[O:30])[C:4]([NH:6][O:7]C1CCCCO1)=[O:5]>O1CCOCC1>[OH:7][NH:6][C:4](=[O:5])[C@:3]([CH3:2])([S:31]([CH3:34])(=[O:33])=[O:32])[CH2:14][CH2:15][N:16]1[CH:21]=[CH:20][C:19]([C:22]#[C:23][C:24]2[CH:25]=[CH:26][CH:27]=[CH:28][CH:29]=2)=[CH:18][C:17]1=[O:30]

Komponenten

4

Edukt 2

HCID 313Hydrochloric AcidHCID 86671970(2R)-2-methyl-2-(methylsulfonyl)-4-(2-oxo-4-(phenylethynyl)pyridin-1(2H)-yl)-N-(tetrahydro-2H-pyran-2-yloxy)butanamide

Produkt 1

HCID 57326985(R)-N-hydroxy-2-methyl-2-(methylsulfonyl)-4-(2-oxo-4-(phenylethynyl) pyridin-1(2H)-yl)butanamide

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 312751,4-DioxaneLösungsmittel

Versuchsvorschrift

A solution of 1.0 M aqueous HCl (10 ml) was added slowly to a solution of (2R)-2-methyl-2-(methylsulfonyl)-4-(2-oxo-4-(phenylethynyl)pyridin-1(2H)-yl)-N-(tetrahydro-2H-pyran-2-yloxy)butanamide (107 mg, 0.226 mmol) in 1,4-dioxane (20 mL) at room temperature. The reaction mixture was allowed to stir at room temperature overnight. After 18 hours the reaction was concentrated to low volume then redissolved in methanol (20 ml) and concentrated in vacuo to afford a light-yellow solid. Yield 71 mg, 81%. MS (APCI) m/z 389.4 (M+H), 1H NMR (400 MHz, DMSO-d6) δ ppm 1.46 (none, 3H) 1.53 (s, 3H) 2.03-2.17 (m, 1H) 2.33-2.45 (m, 1H) 3.07 (s, 3H) 3.71 (td, J=11.90, 4.88 Hz, 1H) 3.96-4.14 (m, 1H) 6.35 (dd, J=6.93, 1.85 Hz, 1H) 6.56 (d, J=1.76 Hz, 1H) 7.36-7.48 (m, 3H) 7.51-7.61 (m, 2H) 7.69 (d, J=7.02 Hz, 1H) 11.05 (br. s., 1H)

Aufarbeitung

  1. concentrationAfter 18 hours the reaction was concentrated to low volume
  2. dissolutionthen redissolved in methanol (20 ml)
  3. concentrationconcentrated in vacuo
  4. customto afford a light-yellow solid

Quellen und Nachweise

ORD-Eintrag
ord-1f2eebcb1eaf4ec2a0c8ebf11a37b559
Quelldatensatz
uspto-grants-2015_04
Patentnummer
US09018384B2

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