L-Methionine → Benzyl (3R)-2-oxo-6-phenyl-2,3,4,7-tetrahydro-1H-azepin-3-ylcarbamate

HRID 1271480

反応式

HRID 1271480 の反応式
N[C@H](C(O)=O)CCSC.COC1C=C(OC)C=CC=1C[N:15]1[CH2:21][C:20]([C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)=[CH:19][CH2:18][C@@H:17]([NH:28][C:29](=[O:38])[O:30][CH2:31][C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[C:16]1=[O:39]>FC(F)(F)C(O)=O.ClCCl>[O:39]=[C:16]1[C@H:17]([NH:28][C:29](=[O:38])[O:30][CH2:31][C:32]2[CH:33]=[CH:34][CH:35]=[CH:36][CH:37]=2)[CH2:18][CH:19]=[C:20]([C:22]2[CH:23]=[CH:24][CH:25]=[CH:26][CH:27]=2)[CH2:21][NH:15]1

参加物

5

反応物 2

HCID 6137L-MethionineHCID 60037872Benzyl (3R)-1-(2,4-dimethoxybenzyl)-2-oxo-6-phenyl-2,3,4,7-tetrahydro-1H-azepin-3-ylcarbamate

生成物 1

HCID 60037846Benzyl (3R)-2-oxo-6-phenyl-2,3,4,7-tetrahydro-1H-azepin-3-ylcarbamate収率 76%

試薬・触媒・溶媒 2

HCID 6344Dichloromethane溶媒HCID 6422Trifluoroacetic acid溶媒

実験手順

A solution of L-methionine (2.56 g, 17.2 mmol) in trifluoroacetic acid (15 mL) was added to a solution of benzyl (3R)-1-(2,4-dimethoxybenzyl)-2-oxo-6-phenyl-2,3,4,7-tetrahydro-1H-azepin-3-ylcarbamate (0.84 g, 1.72 mmol) in dichloromethane (20 mL). After 18 h, the mixture was concentrated and water was added. The mixture was extracted with ethyl acetate, washed with water (2×), saturated aqueous sodium bicarbonate (2×), saturated brine, dried over magnesium sulfate, filtered and concentrated. Purification by silica gel chromatography (5% ethyl acetate/hexanes→50% ethyl acetate/hexanes) gave the title compound (0.44 g). MS 337 (M+1).

後処理

  1. concentrationthe mixture was concentrated
  2. additionwater was added
  3. extractionThe mixture was extracted with ethyl acetate
  4. washwashed with water (2×), saturated aqueous sodium bicarbonate (2×), saturated brine
  5. dry with materialdried over magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customPurification by silica gel chromatography (5% ethyl acetate/hexanes→50% ethyl acetate/hexanes)

出典と根拠

ORDレコード
ord-ef5321a54a7f45409642912b34bfb12a
出典データセット
uspto-grants-2007_04
特許番号
US07205292B2

関連ノート

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