Sodium ethoxide → (+)-N-(7-[1,4]dioxan-2-yl-4-methoxy-benzothiazol-2-yl)-2-ethoxymethyl-isonicotinamide

HRID 985816Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 985816
Cl[CH2:2][C:3]1[CH:4]=[C:5]([CH:26]=[CH:27][N:28]=1)[C:6]([NH:8][C:9]1[S:10][C:11]2[C:17]([CH:18]3[CH2:23][O:22][CH2:21][CH2:20][O:19]3)=[CH:16][CH:15]=[C:14]([O:24][CH3:25])[C:12]=2[N:13]=1)=[O:7].[CH3:29][CH2:30][O-:31].[Na+]>C(O)C>[O:19]1[CH2:20][CH2:21][O:22][CH2:23][CH:18]1[C:17]1[C:11]2[S:10][C:9]([NH:8][C:6](=[O:7])[C:5]3[CH:26]=[CH:27][N:28]=[C:3]([CH2:2][O:31][CH2:30][CH3:29])[CH:4]=3)=[N:13][C:12]=2[C:14]([O:24][CH3:25])=[CH:15][CH:16]=1

Komponenten

4

Edukt 2

HCID 2723922Sodium ethoxideHCID 22507718(+)-2-chloromethyl-N-(7-[1,4]dioxan-2-yl-4-methoxy-benzothiazol-2-yl)-isonicotinamide

Produkt 1

HCID 22507700(+)-N-(7-[1,4]dioxan-2-yl-4-methoxy-benzothiazol-2-yl)-2-ethoxymethyl-isonicotinamideAusbeute 68 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 702EthanolLösungsmittel

Versuchsvorschrift

To a solution of 50 mg (0.12 mmol) (+)-2-chloromethyl-N-(7-[1,4]dioxan-2-yl-4-methoxy-benzothiazol-2-yl)-isonicotinamide in 2 ml ethanol was added 1.32 ml (3.57 mmol) sodium ethylate solution (2.71 M solution in ethanol) and the mixture ultrasonicated at room temperature for 2 h. The reaction mixture was then poured onto water and extracted three times with dichloromethane. The organic phases were dried over sodium sulfate and concentrated in vacuo. Flash chromatography (1/1 acetone/heptane) followed by trituration in ether afforded 35 mg (68%) (+)-N-(7-[1,4]dioxan-2-yl-4-methoxy-benzothiazol-2-yl)-2-ethoxymethyl-isonicotinamide as an off-white solid. [α]D20=+60.7° (c=0.94, CHCl3), ES-MS m/e (%): 430 (M+H+, 100).

Aufarbeitung

  1. customthe mixture ultrasonicated at room temperature for 2 h
  2. additionThe reaction mixture was then poured onto water
  3. extractionextracted three times with dichloromethane
  4. dry with materialThe organic phases were dried over sodium sulfate
  5. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-666d9d58983e43b6bccae8250fdea770
Quelldatensatz
uspto-grants-2005_03
Patentnummer
US06872833B2

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