Sodium Carbonate → 3-[(8aR)-hexahydropyrrolo[1,2-a]pyrazin-2(1H)-ylcarbonyl]-N-[(1S)-2-hydroxy-1-phenylethyl]benzenesulfonamide

HRID 400518ノート

反応式

HRID 400518 の反応式
Cl[S:2]([C:5]1[CH:6]=[C:7]([CH:11]=[CH:12][CH:13]=1)[C:8](Cl)=[O:9])(=[O:4])=[O:3].[CH2:14]1[NH:19][CH2:18][CH2:17][N:16]2[CH2:20][CH2:21][CH2:22][C@H:15]12.C(=O)([O-])[O-].[Na+].[Na+].[NH2:29][C@@H:30]([C:33]1[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=1)[CH2:31][OH:32]>ClCCl.CN(C)C=O.CO>[CH2:14]1[N:19]([C:8]([C:7]2[CH:6]=[C:5]([S:2]([NH:29][C@@H:30]([C:33]3[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=3)[CH2:31][OH:32])(=[O:4])=[O:3])[CH:13]=[CH:12][CH:11]=2)=[O:9])[CH2:18][CH2:17][N:16]2[CH2:20][CH2:21][CH2:22][C@H:15]12

参加物

8

反応物 4

HCID 10340Sodium CarbonateHCID 77671Benzoyl chloride, 3-(chlorosulfonyl)-HCID 1347972-Amino-2-phenylethan-1-olHCID 7004239(8aR)-Octahydropyrrolo(1,2-a)pyrazine

生成物 1

HCID 468524393-[(8aR)-hexahydropyrrolo[1,2-a]pyrazin-2(1H)-ylcarbonyl]-N-[(1S)-2-hydroxy-1-phenylethyl]benzenesulfonamide

試薬・触媒・溶媒 3

HCID 887Methanol溶媒HCID 6228Dimethylformamide溶媒HCID 6344Dichloromethane溶媒2 回

実験手順

To 3-(chlorosulfonyl)benzoyl chloride (0.359 g, 1.5 mmol) in anhydrous dichloromethane (40 mL) was added (R)-octahydropyrrolo[1,2-a]pyrazine (0.189 g, 1.5 mmol) in dichloromethane (4 mL) slowly over 10 min at room temperature. Then sodium carbonate (0.48 g, 4.52 mmol) was added. The mixture was stirred at room temperature overnight. Then (S)-2-amino-2-phenylethanol (0.274 g, 2.0 mmol) in N,N-dimethylformamide (10 mL) was added. The mixture was stirred at room temperature for 4 days. Then methanol (5 mL) was added, the mixture was stirred for 20 minutes, then filtered, and concentrated. The residue was purified by chromatography on silica gel (methanol/dichloromethane=1:12) to give the titled compound: 1H NMR (500 MHz, DMSO-d6) δ ppm 1.30 (m, 1H), 1.60-2.10 (m, 6H), 2.80-3.10 (m, 4H), 3.40 (m, 3H), 4.25 (m, 1H), 4.40-4.60 (m, 1H), 4.82 (t, 1H, J=4 Hz), 7.10 (m, 5H), 7.44 (m, 2H), 7.60 (s, 1H), 7.65 (m, 1H), 8.30 (d, 1H, J=7 Hz); MS (ESI) m/z 430 (M+H)+.

後処理

  1. stirringThe mixture was stirred at room temperature for 4 days
  2. stirringthe mixture was stirred for 20 minutes
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe residue was purified by chromatography on silica gel (methanol/dichloromethane=1:12)

出典と根拠

ORDレコード
ord-7e8f59584ecb4e388be8fa5b914ac1cf
出典データセット
uspto-grants-2014_06
特許番号
US08741899B2

反応ノート

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