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Triethylamine → 6-(N-(4-(Benzyloxy)-3-chlorophenyl)methylsulfonamido)-5-cyclopropyl-2-(4-fluorophenyl)-N-methylbenzofuran-3-carboxamide

HRID 2272345
ノート
印刷プレビュー

反応式

HRID 2272345 の反応式
[CH:1]1([C:4]2[C:5]([NH:24][S:25]([CH3:28])(=[O:27])=[O:26])=[CH:6][C:7]3[O:11][C:10]([C:12]4[CH:17]=[CH:16][C:15]([F:18])=[CH:14][CH:13]=4)=[C:9]([C:19]([NH:21][CH3:22])=[O:20])[C:8]=3[CH:23]=2)[CH2:3][CH2:2]1.[CH2:29]([O:36][C:37]1[CH:42]=[CH:41][C:40](B(O)O)=[CH:39][C:38]=1[Cl:46])[C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1.C(N(CC)CC)C>C(Cl)Cl.C([O-])(=O)C.[Cu+2].C([O-])(=O)C>[CH2:29]([O:36][C:37]1[CH:42]=[CH:41][C:40]([N:24]([C:5]2[C:4]([CH:1]3[CH2:3][CH2:2]3)=[CH:23][C:8]3[C:9]([C:19]([NH:21][CH3:22])=[O:20])=[C:10]([C:12]4[CH:17]=[CH:16][C:15]([F:18])=[CH:14][CH:13]=4)[O:11][C:7]=3[CH:6]=2)[S:25]([CH3:28])(=[O:27])=[O:26])=[CH:39][C:38]=1[Cl:46])[C:30]1[CH:31]=[CH:32][CH:33]=[CH:34][CH:35]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 3

HCID 8471Triethylamine2 回HCID 37636574-Benzyloxy-3-chlorophenylboronic acid3 回HCID 160735125-cyclopropyl-2-(4-fluorophenyl)-N-methyl-6-(methylsulfonamido)benzofuran-3-carboxamide

生成物 1

HCID 1317322996-(N-(4-(Benzyloxy)-3-chlorophenyl)methylsulfonamido)-5-cyclopropyl-2-(4-fluorophenyl)-N-methylbenzofuran-3-carboxamide収率 54%

試薬・触媒・溶媒 2

HCID 8895
Cupric acetate
触媒
2 回
HCID 6344Dichloromethane溶媒2 回

実験手順

A mixture of 5-cyclopropyl-2-(4-fluorophenyl)-N-methyl-6-(methylsulfonamido)benzofuran-3-carboxamide (1.00 g, 2.49 mmol), (4-(benzyloxy)-3-chlorophenyl)boronic acid (1.31 g, 4.97 mmol), copper(II) acetate (0.903 g, 4.97 mmol), and triethylamine (2.00 mL, 14.4 mmol) in anhydrous DCM (25 mL) was treated with powdered 3 angstrom molecular sieves (2.00 g). The resulting mixture was stirred at RT under air using a drying tube to exclude moisture. After 18 hours the mixture was treated with an additional 1.00 g portion of (4-(benzyloxy)-3-chlorophenyl)boronic acid. After another 18 hours the mixture was diluted with 15 mL of DCM and treated with 1.30 g of (4-(benzyloxy)-3-chlorophenyl)boronic acid, 0.900 g of copper(II) acetate, 2.00 g of 3 angstrom molecular sieves and 2 mL of triethylamine. After 16 more hours the mixture was filtered through Celite to remove solids and the filtrate concentrated to dryness at reduced pressure. The residue was suspended in EtOAc and the undissolved solids removed by filtration through Celite. The filtrate was washed with water (2×), brine (1×), dried over sodium sulfate and concentrated to dryness at reduced pressure. The crude material was purified by flash chromatography (silica gel, gradient from DCM to 7:3 DCM/EtOAc) followed by recrystallization from hexane/EtOAc to afford the title compound (0.83 g, 54%) as an off white solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 8.40-8.47 (m, 1H) 8.20 (s, 1H) 7.93-8.00 (m, 2H) 7.69 (d, J=2.6 Hz, 1H) 7.52 (dd, J=8.9, 2.7 Hz, 1H) 7.30-7.48 (m, 7H) 7.25 (d, J=9.1 Hz, 1H) 7.14 (s, 1H) 5.21 (s, 2H) 3.33 (s, 3H) 2.82 (d, J=4.6 Hz, 3H) 2.17-2.33 (m, 1H) 0.75-1.09 (m, 3H) 0.42 (br. s., 1H). LCMS (m/z, ES+)=619, 621 (M+H+).

後処理

  1. additionwas treated with powdered 3 angstrom molecular sieves (2.00 g)
  2. filtrationAfter 16 more hours the mixture was filtered through Celite
  3. customto remove solids
  4. concentrationthe filtrate concentrated to dryness at reduced pressure
  5. customthe undissolved solids removed by filtration through Celite
  6. washThe filtrate was washed with water (2×), brine (1×)
  7. dry with materialdried over sodium sulfate
  8. concentrationconcentrated to dryness at reduced pressure
  9. customThe crude material was purified by flash chromatography (silica gel, gradient from DCM to 7:3 DCM/EtOAc)
  10. customfollowed by recrystallization from hexane/EtOAc

出典と根拠

ORDレコード
ord-13f42e3d88d94025ae8eb9979b9de186
出典データセット
uspto-grants-2015_09
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09119868B2

反応ノート

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