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Acetyl chloride → Methyl [(3S)-2-[2-acetylhydrazino]-5-(4-chlorophenyl)-7-(methyloxy)-3H-1,4-benzodiazepin-3-yl]acetate

HRID 570173
ノート
印刷プレビュー

反応式

HRID 570173 の反応式
[CH3:1][O:2][C:3](=[O:26])[CH2:4][C@@H:5]1[N:11]=[C:10]([C:12]2[CH:17]=[CH:16][C:15]([Cl:18])=[CH:14][CH:13]=2)[C:9]2[CH:19]=[C:20]([O:23][CH3:24])[CH:21]=[CH:22][C:8]=2[NH:7][C:6]1=S.O.[NH2:28][NH2:29].CCN(CC)CC.[C:37](Cl)(=[O:39])[CH3:38]>C1COCC1>[CH3:1][O:2][C:3](=[O:26])[CH2:4][C@@H:5]1[N:11]=[C:10]([C:12]2[CH:17]=[CH:16][C:15]([Cl:18])=[CH:14][CH:13]=2)[C:9]2[CH:19]=[C:20]([O:23][CH3:24])[CH:21]=[CH:22][C:8]=2[N:7]=[C:6]1[NH:28][NH:29][C:37](=[O:39])[CH3:38]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 6367Acetyl chlorideHCID 8471TriethylamineHCID 24654Hydrazine hydrate (1:1)HCID 57465560Methyl [(3S)-5-(4-chlorophenyl)-7-(methyloxy)-2-thioxo-2,3-dihydro-1H-1,4-benzodiazepin-3-yl]acetate

生成物 1

HCID 57465559Methyl [(3S)-2-[2-acetylhydrazino]-5-(4-chlorophenyl)-7-(methyloxy)-3H-1,4-benzodiazepin-3-yl]acetate収率 98%

試薬・触媒・溶媒

1
HCID 8028Tetrahydrofuran溶媒

反応条件

温度
0 °C

実験手順

To a suspension of Methyl[(3S)-5-(4-chlorophenyl)-7-(methyloxy)-2-thioxo-2,3-dihydro-1H-1,4-benzodiazepin-3-yl]acetate (for a preparation see Reference compound E (9.0 g, 23.2 mmol) in THF (300 mL) at 0° C. was added hydrazine monohydrate (3.4 mL, 69.6 mmol) dropwise. The reaction mixture was stirred for 5 h between 5° C. and 15° C. before being cooled at 0° C. Et3N (9.7 mL, 69.6 mmol) was then added slowly and acetyl chloride (7.95 mL, 69.6 mmol) was added dropwise. The mixture was then allowed to warm to room temperature for 16 h before being concentrated under reduced pressure. The crude product was dissolved in DCM and washed with water. The organic layer was dried over Na2SO4, filtered and concentrated in vacuo to give the crude title compound (9.7 g, 98% yield) which was used without further purification. Rf=0.49 (DCM/MeOH: 90/10).

後処理

  1. customat 0° C.
  2. temperatureto warm to room temperature for 16 h
  3. concentrationbefore being concentrated under reduced pressure
  4. dissolutionThe crude product was dissolved in DCM
  5. washwashed with water
  6. dry with materialThe organic layer was dried over Na2SO4
  7. filtrationfiltered
  8. concentrationconcentrated in vacuo

出典と根拠

ORDレコード
ord-4f8b8560ae6d4c9c82ffa327786b955f
出典データセット
uspto-grants-2015_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09023842B2

反応ノート

読み込み中…

このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート