Cesium carbonate → tert-butyl(3S,4S)-7-cyano-1-((2-methoxynaphthalen-1-yl)methyl)-4-methyl-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-3-ylcarbamate

HRID 1486105Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1486105
[C:1]([C:3]1[CH:23]=[CH:22][C:6]2[NH:7][C:8](=[O:21])[C@@H:9]([NH:13][C:14](=[O:20])[O:15][C:16]([CH3:19])([CH3:18])[CH3:17])[C@H:10]([CH3:12])[NH:11][C:5]=2[CH:4]=1)#[N:2].Cl[CH2:25][C:26]1[C:35]2[C:30](=[CH:31][CH:32]=[CH:33][CH:34]=2)[CH:29]=[CH:28][C:27]=1[O:36][CH3:37].C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C=O)C.CCOC(C)=O>[C:1]([C:3]1[CH:23]=[CH:22][C:6]2[N:7]([CH2:25][C:26]3[C:35]4[C:30](=[CH:31][CH:32]=[CH:33][CH:34]=4)[CH:29]=[CH:28][C:27]=3[O:36][CH3:37])[C:8](=[O:21])[C@@H:9]([NH:13][C:14](=[O:20])[O:15][C:16]([CH3:18])([CH3:19])[CH3:17])[C@H:10]([CH3:12])[NH:11][C:5]=2[CH:4]=1)#[N:2]

Komponenten

6

Edukt 3

HCID 10796Cesium carbonateHCID 133566461-(Chloromethyl)-2-methoxynaphthaleneHCID 72713838Tert-butyl ((3S,4S)-7-cyano-4-methyl-2-oxo-2,3,4,5-tetrahydro-1H-benzo[B][1,4]diazepin-3-YL)carbamate

Produkt 1

HCID 72713841tert-butyl(3S,4S)-7-cyano-1-((2-methoxynaphthalen-1-yl)methyl)-4-methyl-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-3-ylcarbamateAusbeute 72 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6228DimethylformamideLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

To a rt solution of tert-butyl(3S,4S)-7-cyano-4-methyl-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-3-ylcarbamate (406 mg, 1.28 mmol) in DMF (3.21 ml) was added 1-(chloromethyl)-2-methoxynaphthalene (318 mg, 1.54 mmol) and cesium carbonate (1.25 g, 3.85 mmol). The reaction was stirred at rt for 16 h, then diluted with EtOAc, washed with H2O and sat. aq. NaCl, dried over Na2SO4, filtered, and concentrated. The crude material was purified by flash chromatography to provide tert-butyl(3S,4S)-7-cyano-1-((2-methoxynaphthalen-1-yl)methyl)-4-methyl-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b][1,4]diazepin-3-ylcarbamate (448 mg, 72%) as an off-white solid. MS m/z 509 (MNa)+.

Aufarbeitung

  1. washwashed with H2O and sat. aq. NaCl
  2. dry with materialdried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe crude material was purified by flash chromatography

Quellen und Nachweise

ORD-Eintrag
ord-4812ba8b8332445aa2f720ec03a3215e
Quelldatensatz
uspto-grants-2016_08
Patentnummer
US09422331B2

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