Dimethylformamide → Ethyl trans-5-(4-ethoxy-2-methoxyphenyl)-7-chloro-1-neopentyl-2-oxo-1,2,3,5-tetrahydro-4,1-benzoxazepine-3-acetate

HRID 1419066

Reaktionsgleichung

Reaktionsgleichung von HRID 1419066
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[N:11]([CH2:12][C:13]([CH3:16])([CH3:15])[CH3:14])[C:10](=[O:17])[C@@H:9]([CH2:18][C:19]([O:21][CH2:22][CH3:23])=[O:20])[O:8][C@H:7]([C:24]3[CH:29]=[CH:28][C:27]([OH:30])=[CH:26][C:25]=3[O:31][CH3:32])[C:6]=2[CH:33]=1.[CH2:34](I)[CH3:35].C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>O>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[N:11]([CH2:12][C:13]([CH3:15])([CH3:14])[CH3:16])[C:10](=[O:17])[C@@H:9]([CH2:18][C:19]([O:21][CH2:22][CH3:23])=[O:20])[O:8][C@H:7]([C:24]3[CH:29]=[CH:28][C:27]([O:30][CH2:34][CH3:35])=[CH:26][C:25]=3[O:31][CH3:32])[C:6]=2[CH:33]=1

Komponenten

6

Versuchsvorschrift

A mixture of ethyl trans-7-chloro-5-(4-hydroxy-2-methoxyphenyl)-1-neopentyl-2-oxo-1,2,3,5-tetrahydro-4,1-benzoxazepine-3-acetate (0.25 g), ethyl iodide (0.06 ml), potassium carbonate (0.15 g) and N,N-dimethylformamide (200 ml) was stirred for 3 h. The mixture was diluted with water (50 ml) and extracted with ethyl acetate (100 ml). The extract was washed with 1N hydrochloric acid and aqueous sodium bicarbonate, dried over magnesium sulfate and concentrated in vacuo to give ethyl trans-7-chloro-5-(4-ethoxy-2-methoxyphenyl)-1-neopentyl-2-oxo-1,2,3,5-tetrahydro-4,1-benzoxazepine-3-acetate (0.24 g) as colorless crystals (mp=164°-166° C.).

Aufarbeitung

  1. extractionextracted with ethyl acetate (100 ml)
  2. washThe extract was washed with 1N hydrochloric acid and aqueous sodium bicarbonate
  3. dry with materialdried over magnesium sulfate
  4. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-d7a5b01df5a7493287ab254ddf3e920f
Quelldatensatz
uspto-grants-1999_03
Patentnummer
US05885979

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