Dimethylformamide → (2R)-2-[N-(4-Chlorobenzenesulfonyl)-N-(4-dimethylaminobenzyl)amino]-4-methylpentanoic acid amide

HRID 507302ノート

反応式

HRID 507302 の反応式
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([N:11]([C@H:20]([CH2:24][CH:25]([CH3:27])[CH3:26])[C:21]([NH2:23])=[O:22])[CH2:12][C:13]2[CH:18]=[CH:17]C(N)=[CH:15][CH:14]=2)(=[O:10])=[O:9])=[CH:4][CH:3]=1.IC.C(=O)([O-])[O-].[Cs+].[Cs+].CCOC(C)=O.[CH3:42][N:43]([CH:45]=O)[CH3:44]>O>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([S:8]([N:11]([C@H:20]([CH2:24][CH:25]([CH3:27])[CH3:26])[C:21]([NH2:23])=[O:22])[CH2:12][C:13]2[CH:14]=[CH:15][C:45]([N:43]([CH3:42])[CH3:44])=[CH:17][CH:18]=2)(=[O:9])=[O:10])=[CH:6][CH:7]=1

参加物

7

反応物 5

HCID 6228DimethylformamideHCID 6328Methyl iodideHCID 8857Ethyl AcetateHCID 10796Cesium carbonateHCID 59001017(2R)-2-[(4-aminobenzyl)-(4-chloro-benzenesulfonyl)amino]-4-methyl-pentanoic acid amide

生成物 1

HCID 59432818(2R)-2-[N-(4-Chlorobenzenesulfonyl)-N-(4-dimethylaminobenzyl)amino]-4-methylpentanoic acid amide収率 16%

試薬・触媒・溶媒 1

HCID 962Water溶媒

反応条件

温度
40 °C

実験手順

(2R)-2-[N-(4-Chlorobenzene-sulfonyl)-N-(4-aminobenzyl)amino]-4-methyl-pentanoic acid amide (Example 48, 0.10 g, 0.22 mmol) was dissolved in DMF (5 mL). To this solution was added iodomethane (62 mg, 0.44 mmol), and cesium carbonate (220 mg, 0.66 mmol). The reaction was then stirred at 40° C. for 18 h. The reaction was poured into EtOAc and water. The organic was collected, dried over MgSO4, and concentrated to an oily residue. The residue was further purified (Biotage 40S, loaded in CH2Cl2, eluted in 25% EtOAc/hexanes) to yield a yellow powder (15 mg, 16%). MS (ESI), (M+H)+ 438.1; 1H NMR (DMSO-d6, 500 MHz) δ 7.74 (dd, 2H, J=1.9, 6.7), 7.54 (dd, 2H, J=1.9, 6.8), 7.43 (s, 1H), 7.16 (d, 2H, J=8.6), 7.01 (s, 1H), 6.61 (d, 2H, J=8.8), 4.59 (q, 2H, J=16, 25), 4.34 (dd, 1H, J=5.0, 9.3), 2.85 (s, 6H), 1.27-1.47 (m, 3H), 0.80 (d, 3H, J=5.9), 0.52 (d, 3H, J=6.1).

後処理

  1. customThe organic was collected
  2. dry with materialdried over MgSO4
  3. concentrationconcentrated to an oily residue
  4. customThe residue was further purified
  5. wash(Biotage 40S, loaded in CH2Cl2, eluted in 25% EtOAc/hexanes)

出典と根拠

ORDレコード
ord-e0d66702db6d477f8c52402318ee4110
出典データセット
uspto-grants-2010_08
特許番号
US07786122B2

反応ノート

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