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Acetyl chloride → N-(3-{[2-(acetylamino)-7-cyano-1,3-benzothiazol-6-yl]oxy}phenyl)-3-(1-cyano-1-methylethyl)benzamide

HRID 455177
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Reaktionsgleichung

Reaktionsgleichung von HRID 455177
[NH2:1][C:2]1[S:3][C:4]2[C:10]([C:11]#[N:12])=[C:9]([O:13][C:14]3[CH:15]=[C:16]([NH:20][C:21](=[O:33])[C:22]4[CH:27]=[CH:26][CH:25]=[C:24]([C:28]([C:31]#[N:32])([CH3:30])[CH3:29])[CH:23]=4)[CH:17]=[CH:18][CH:19]=3)[CH:8]=[CH:7][C:5]=2[N:6]=1.[C:34](Cl)(=[O:36])[CH3:35]>N1C=CC=CC=1>[C:34]([NH:1][C:2]1[S:3][C:4]2[C:10]([C:11]#[N:12])=[C:9]([O:13][C:14]3[CH:15]=[C:16]([NH:20][C:21](=[O:33])[C:22]4[CH:27]=[CH:26][CH:25]=[C:24]([C:28]([C:31]#[N:32])([CH3:30])[CH3:29])[CH:23]=4)[CH:17]=[CH:18][CH:19]=3)[CH:8]=[CH:7][C:5]=2[N:6]=1)(=[O:36])[CH3:35]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

4

Edukt 2

HCID 6367Acetyl chlorideHCID 86644680N-{3-[(2-amino-7-cyano-1,3-benzothiazol-6-yl)oxy]phenyl}-3-(1-cyano-1-methylethyl)benzamide

Produkt 1

HCID 59454508N-(3-{[2-(acetylamino)-7-cyano-1,3-benzothiazol-6-yl]oxy}phenyl)-3-(1-cyano-1-methylethyl)benzamideAusbeute 58,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1049PyridineLösungsmittel

Versuchsvorschrift

To a solution of N-{3-[(2-amino-7-cyano-1,3-benzothiazol-6-yl)oxy]phenyl}-3-(1-cyano-1-methylethyl)benzamide (200 mg, 0.44 mmol) produced in Example 1 (iv) in pyridine (2 mL) was added acetyl chloride (41 μL, 0.57 mmol), and the mixture was stirred at room temperature for 2 hr. The reaction mixture was concentrated under reduced pressure. The residue was suspended in ethyl acetate (20 mL), washed successively with 5% aqueous sodium hydrogen carbonate solution (20 mL) and saturated brine (20 mL), and dried over anhydrous sodium sulfate. Insoluble material was filtered off, and the filtrate was concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (ethyl acetate/n-hexane=50/50→100/0), and the obtained solution was concentrated under reduced pressure. The residue was crystallized from ethyl acetate to give the title compound (127 mg, 58%) as a white powder.

Aufarbeitung

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. washwashed successively with 5% aqueous sodium hydrogen carbonate solution (20 mL) and saturated brine (20 mL)
  3. dry with materialdried over anhydrous sodium sulfate
  4. filtrationInsoluble material was filtered off
  5. concentrationthe filtrate was concentrated under reduced pressure
  6. customThe obtained residue was purified by silica gel column chromatography (ethyl acetate/n-hexane=50/50→100/0)
  7. concentrationthe obtained solution was concentrated under reduced pressure
  8. customThe residue was crystallized from ethyl acetate

Quellen und Nachweise

ORD-Eintrag
ord-0c3b3ec35acc425ea05d0ff9cb826ee9
Quelldatensatz
uspto-grants-2013_07
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08497274B2

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