ホームMCPワークベンチSkills
ホームワークベンチ通知マイページ
llms.txt · MCPガイドプライバシーポリシー · 利用規約 · サポートv1.8.0
  1. ホーム
  2. /反応

Sulfuric Acid → (4aS,5S,7aS)-7a-(5-bromo-2,4-difluorophenyl)-5-(fluoromethyl)-4a,5,7,7a-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-amine

HRID 68378
ノート
印刷プレビュー

反応式

HRID 68378 の反応式
[F:1][C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[C@:9]12[CH2:17][O:16][C@H:15]([CH2:18][F:19])[C@H:14]1[CH2:13][S:12][C:11]([NH2:20])=[N:10]2.S(=O)(=O)(O)O.C1C(=O)N([Br:33])C(=O)C1.[OH-].[Na+]>C(O)(C(F)(F)F)=O>[Br:33][C:5]1[C:6]([F:8])=[CH:7][C:2]([F:1])=[C:3]([C@:9]23[CH2:17][O:16][C@H:15]([CH2:18][F:19])[C@H:14]2[CH2:13][S:12][C:11]([NH2:20])=[N:10]3)[CH:4]=1
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 1118Sulfuric AcidHCID 14798Sodium HydroxideHCID 67184N-bromobutanimideHCID 86707817(4aS,5S,7aS)-7a-(2,4-Difluorophenyl)-5-(fluoromethyl)-4a,5,7,7a-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-amine

生成物 1

HCID 86707818(4aS,5S,7aS)-7a-(5-bromo-2,4-difluorophenyl)-5-(fluoromethyl)-4a,5,7,7a-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-amine

試薬・触媒・溶媒 1

HCID 6422Trifluoroacetic acid溶媒

反応条件

温度
60 °C

実験手順

(4aS,5S,7aS)-7a-(2,4-Difluorophenyl)-5-(fluoromethyl)-4a,5,7,7a-tetrahydro-4H-furo[3,4-d][1,3]thiazin-2-amine (700 mg, 2.32 mmol) was dissolved in TFA (2.1 mL) and sulfuric acid (864 μL, 16.2 mmol). NBS (453 mg, 2.55 mmol) was added and the reaction was stirred at 60° C. for 45 minutes. The reaction was cooled to room temperature and basified with 2N NaOH. The mixture was then extracted with EtOAc (×3). The combined organics were dried (MgSO4) and concentrated in vacuo. The residue was purified using column chromatography, eluting with 20-80% EtOAc in n-hexane to give the title compound. (620 mg). 1H NMR (400 MHz, CDCl3) δ ppm: 7.67 (t, J=8.13 Hz, 1H), 6.94 (dd, J=8.01, 11.55 Hz, 1H), 4.65 (d, J=4.16 Hz, 1H), 4.47-4.57 (m, 3H), 3.84-3.98 (m, 1H), 3.01-3.20 (m, 2H), 2.77-2.91 (m, J=13.40 Hz, 1H).

後処理

  1. extractionThe mixture was then extracted with EtOAc (×3)
  2. dry with materialThe combined organics were dried (MgSO4)
  3. concentrationconcentrated in vacuo
  4. customThe residue was purified
  5. washeluting with 20-80% EtOAc in n-hexane

出典と根拠

ORDレコード
ord-51d40b39f41e4a1cbae23e41d2231a1d
出典データセット
uspto-grants-2014_09
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08822455B2

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