Diisopropylamine → furan-2-carboxylic acid N'-[2-(5-fluoro-2'-trifluoromethoxy-biphenyl-2-yloxy)-acetyl]-N'-isopropyl-hydrazide

HRID 2250928ノート

反応式

HRID 2250928 の反応式
[F:1][C:2]1[CH:3]=[CH:4][C:5]([O:19][CH2:20][C:21](O)=[O:22])=[C:6]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=2[O:14][C:15]([F:18])([F:17])[F:16])[CH:7]=1.[CH:24]([NH:27][NH:28][C:29]([C:31]1[O:32][CH:33]=[CH:34][CH:35]=1)=[O:30])([CH3:26])[CH3:25].C(NC(C)C)(C)C.C1CN([P+](Br)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F>CN(C=O)C>[F:1][C:2]1[CH:3]=[CH:4][C:5]([O:19][CH2:20][C:21]([N:27]([CH:24]([CH3:26])[CH3:25])[NH:28][C:29]([C:31]2[O:32][CH:33]=[CH:34][CH:35]=2)=[O:30])=[O:22])=[C:6]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=2[O:14][C:15]([F:16])([F:17])[F:18])[CH:7]=1

参加物

6

反応物 4

HCID 7912DiisopropylamineHCID 468639N'-isopropylfuran-2-carbohydrazideHCID 2733179PyBroPHCID 58689904(5-Fluoro-2'-trifluoromethoxy-biphenyl-2-yloxy)-acetic acid

生成物 1

HCID 11554779furan-2-carboxylic acid N'-[2-(5-fluoro-2'-trifluoromethoxy-biphenyl-2-yloxy)-acetyl]-N'-isopropyl-hydrazide収率 44%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

A solution of (5-fluoro-2′-trifluoromethoxy-biphenyl-2-yloxy)-acetic acid (174 mg, 0.52 mmol) and furan-2-carboxylic acid N′-isopropyl-hydrazide (90 mg, 0.53 mmol) in DMF (5 ml) was treated with diisopropyl amine (0.235 ml, 1.32 mmol) and PyBroP (370 mg, 0.79 mmol) at room temperature overnight. The reaction mixture was partitioned between saturated aqueous sodium bicarbonate and ethyl acetate. The organic layer was successively washed with water and brine, then dried over sodium sulfate, filtered and concentrated. The crude was absorbed on silica and purified on a silica gel column with a 30-80% ethyl acetate in hexanes gradient to afford the product as a white solid (110 mg, 44%). MS m/e 481.38 (M+H+)

後処理

  1. customThe reaction mixture was partitioned between saturated aqueous sodium bicarbonate and ethyl acetate
  2. washThe organic layer was successively washed with water and brine
  3. dry with materialdried over sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe crude was absorbed on silica
  7. custompurified on a silica gel column with a 30-80% ethyl acetate in hexanes gradient

出典と根拠

ORDレコード
ord-3d1e97738c7743b18edb0e84c68f737c
出典データセット
uspto-grants-2008_01
特許番号
US07317125B2

反応ノート

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