Diisopropylethylamine → [5-Chloro-6-(1-isopropyl-piperidin-4-yloxy)-3-methyl-benzofuran-2-yl]-(4,4-difluoro-piperidin-1-yl)-methanone

HRID 493223ノート

反応式

HRID 493223 の反応式
[Cl:1][C:2]1[C:3]([O:15][CH:16]2[CH2:21][CH2:20][N:19]([CH:22]([CH3:24])[CH3:23])[CH2:18][CH2:17]2)=[CH:4][C:5]2[O:9][C:8]([C:10]([OH:12])=O)=[C:7]([CH3:13])[C:6]=2[CH:14]=1.Cl.[F:26][C:27]1([F:33])[CH2:32][CH2:31][NH:30][CH2:29][CH2:28]1.F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1.C(N(C(C)C)C(C)C)C>C1COCC1>[Cl:1][C:2]1[C:3]([O:15][CH:16]2[CH2:21][CH2:20][N:19]([CH:22]([CH3:24])[CH3:23])[CH2:18][CH2:17]2)=[CH:4][C:5]2[O:9][C:8]([C:10]([N:30]3[CH2:31][CH2:32][C:27]([F:33])([F:26])[CH2:28][CH2:29]3)=[O:12])=[C:7]([CH3:13])[C:6]=2[CH:14]=1

参加物

6

反応物 4

HCID 81531DiisopropylethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 27583514,4-Difluoropiperidine hydrochlorideHCID 687236205-Chloro-6-(1-isopropyl-piperidin-4-yloxy)-3-methyl-benzofuran-2-carboxylic acid

生成物 1

HCID 68724082[5-Chloro-6-(1-isopropyl-piperidin-4-yloxy)-3-methyl-benzofuran-2-yl]-(4,4-difluoro-piperidin-1-yl)-methanone収率 99.1%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

In a flask were mixed together the above prepared 5-chloro-6-(1-isopropyl-piperidin-4-yloxy)-3-methyl-benzofuran-2-carboxylic acid (0.200 g, 0.406 mmol, corrected for purity), 4,4-difluoropiperidine hydrochloride (0.077 g, 1.2 eq.), (benzotriazol-1-yloxy)-tris-(dimethylamino)phosphonium hexafluorophosphate (0.216 g, 1.2 eq.) and 2.4 eq. of N-ethyldiisopropylamine (0.166 mL) in 4 mL of abs. THF and stirred over night at ambient temperature. Pouring onto crashed ice/AcOEt/NH4Cl-solution, twofold extraction with AcOEt, washing with water and brine, drying over magnesium sulfate, and evaporation of the solvents, followed by flash chromatography (SiO2, NEt3/AcOEt=2/98) yielded 0.183 g of the title compound as white solid.

後処理

  1. additionIn a flask were mixed together the
  2. additionPouring
  3. extractionextraction with AcOEt
  4. washwashing with water and brine
  5. dry with materialdrying over magnesium sulfate, and evaporation of the solvents

出典と根拠

ORDレコード
ord-f1c4c54cb962482e9be32388a8bbddfc
出典データセット
uspto-grants-2009_05
特許番号
US07534788B2

反応ノート

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