1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → 3,3,3-trifluoro-N-[(+/-)-trans-2-oxo-3-oxabicyclo[3.1.0]hex-1-yl]-propanamide

HRID 10074

反応式

HRID 10074 の反応式
[NH2:1][C@@:2]12[CH2:7][C@H:6]1[CH2:5][O:4][C:3]2=[O:8].[F:9][C:10]([F:16])([F:15])[CH2:11][C:12](O)=[O:13].OC1C2N=NNC=2C=CC=1.C(N=C=NCCCN(C)C)C>CN(C)C=O.O.C(N(CC)CC)C>[F:9][C:10]([F:16])([F:15])[CH2:11][C:12]([NH:1][C@@:2]12[CH2:7][C@H:6]1[CH2:5][O:4][C:3]2=[O:8])=[O:13]

参加物

8

実験手順

(±)-Trans-1-amino-3-oxabicyclo[3.1.0]hexan-2-one (128 mg, 1.13 mmol) was mixed with 3,3,3-trifluoropropionic acid in 2.3 mL of N,N-dimethylformamide. Hydroxybenzotriazole (17.4 mg, 0.11 mmol) was added followed by 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (282 mg, 1.47 mmol). The pH of the reaction mixture was adjusted to 8.5 with triethylamine and the mixture was allowed to stir at ambient temperature for 2 hours. Water was then added and the reaction mixture was extracted with ethyl acetate. The combined organic extracts were washed with water and brine, then dried (sodium sulfate) and concentrated to give the crude product. This was purified by silica gel chromatography to afford 120 mg (45%) of 3,3,3-trifluoro-N-[(±)-trans-2-oxo-3-oxabicyclo[3.1.0]hex-1-yl]-propanamide.

後処理

  1. extractionthe reaction mixture was extracted with ethyl acetate
  2. washThe combined organic extracts were washed with water and brine
  3. dry with materialdried (sodium sulfate)
  4. concentrationconcentrated
  5. customto give the crude product
  6. customThis was purified by silica gel chromatography

出典と根拠

ORDレコード
ord-0300c97a88a5417abebd157852f56576
出典データセット
uspto-grants-2006_08
特許番号
US07091380B2

関連ノート

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