Sodium Hydroxide → N-[(S)-2-(5-Bromo-2-fluoro-phenyl)-2-hydroxy-propyl]-2-nitro-benzenesulfonamide

HRID 39233

反応式

HRID 39233 の反応式
[NH2:1][CH2:2][C@:3]([C:6]1[CH:11]=[C:10]([Br:12])[CH:9]=[CH:8][C:7]=1[F:13])([OH:5])[CH3:4].[N+:14]([C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=1[S:23](Cl)(=[O:25])=[O:24])([O-:16])=[O:15].[OH-].[Na+]>C1COCC1.CC(OC)(C)C>[Br:12][C:10]1[CH:9]=[CH:8][C:7]([F:13])=[C:6]([C@@:3]([OH:5])([CH3:4])[CH2:2][NH:1][S:23]([C:18]2[CH:19]=[CH:20][CH:21]=[CH:22][C:17]=2[N+:14]([O-:16])=[O:15])(=[O:24])=[O:25])[CH:11]=1

参加物

6

反応物 3

HCID 14798Sodium HydroxideHCID 155402-Nitrobenzenesulfonyl chlorideHCID 66666122(S)-1-Amino-2-(5-bromo-2-fluoro-phenyl)-propan-2-ol

生成物 1

HCID 66665841N-[(S)-2-(5-Bromo-2-fluoro-phenyl)-2-hydroxy-propyl]-2-nitro-benzenesulfonamide

試薬・触媒・溶媒 2

HCID 8028Tetrahydrofuran溶媒HCID 15413tert-Butyl methyl ether溶媒

反応条件

温度
20 °C

実験手順

To a solution of (S)-1-amino-2-(5-bromo-2-fluoro-phenyl)-propan-2-ol (34.7 g, 140 mmol) in THF (400 ml) was added 2-nitro-benzenesulfonyl chloride (34.9 g, 154 mmol) at 0-5° C. and afterwards 1N aqueous NaOH over a period of 0.5 h. The reaction mixture was stirred for 2 h at 20° C. The reaction mixture was diluted with TBME and washed with water and NaH2PO4 solution and brine, dried over MgSO4, filtered and concentrated to provide the title compound after crystallization from TBME-hexane as beige crystals: TLC (toluene-EtOAc 3:1): Rf=0.51; UPLC RtH5=1.118 min; ESIMS: 450, 452 [(M+NHa)+]; 1H NMR (360 MHz, CDCl3): δ 7.98 (m, 1H), 7.81 (m, 1H), 7.65 (m, 2H), 7.59 (dd, 1H), 7.24 (m, 1H), 6.79 (dd, 1H), 5.60 (t, 1H), 4.16 (br s, 1H), 3.55 (dd, 1H), 3.44 (dd, 1H), 2.51 (s, 1H), 1.51 (s, 3H).

後処理

  1. washwashed with water and NaH2PO4 solution and brine
  2. dry with materialdried over MgSO4
  3. filtrationfiltered
  4. concentrationconcentrated

出典と根拠

ORDレコード
ord-e74ab5290fe748a98af7c35364079e35
出典データセット
uspto-grants-2013_09
特許番号
US08524897B2

関連ノート

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