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 1475809Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1475809
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]

Komponenten

5

Edukt 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

Produkt 1

HCID 86671908(2R)-N-hydroxy-2-methyl-2-(methylsulfonyl)-4-{2-oxo-4-[4-(1H-pyrazol-1-yl)phenyl]pyridin-1(2H)-yl}butanamideAusbeute 99,3 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 887MethanolLösungsmittelHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

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).

Aufarbeitung

  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

Quellen und Nachweise

ORD-Eintrag
ord-e67952d93e45455989bc31e5bb3e93f1
Quelldatensatz
uspto-grants-2015_04
Patentnummer
US09018384B2

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