2-Bromobenzoic acid → N-biphenyl-4-yl-3-[4-(2-bromo-benzoyl)-piperazin-1-yl]-3-oxo-propionamide

HRID 1665603ノート

反応式

HRID 1665603 の反応式
C1C=CC2N(O)N=NC=2C=1.CCN(C(C)C)C(C)C.[Br:20][C:21]1[CH:29]=[CH:28][CH:27]=[CH:26][C:22]=1[C:23]([OH:25])=O.CCN=C=NCCCN(C)C.Cl.Cl.[C:43]1([C:61]2[CH:66]=[CH:65][CH:64]=[CH:63][CH:62]=2)[CH:48]=[CH:47][C:46]([NH:49][C:50](=[O:60])[CH2:51][C:52](=[O:59])[N:53]2[CH2:58][CH2:57][NH:56][CH2:55][CH2:54]2)=[CH:45][CH:44]=1>CN(C=O)C.O>[C:43]1([C:61]2[CH:66]=[CH:65][CH:64]=[CH:63][CH:62]=2)[CH:44]=[CH:45][C:46]([NH:49][C:50](=[O:60])[CH2:51][C:52]([N:53]2[CH2:54][CH2:55][N:56]([C:23](=[O:25])[C:22]3[CH:26]=[CH:27][CH:28]=[CH:29][C:21]=3[Br:20])[CH2:57][CH2:58]2)=[O:59])=[CH:47][CH:48]=1

参加物

8

反応物 5

HCID 69402-Bromobenzoic acidHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 66625265N-Biphenyl-4-yl-3-oxo-3-piperazin-1-yl-propionamide hydrochloride

生成物 1

HCID 44230951N-biphenyl-4-yl-3-[4-(2-bromo-benzoyl)-piperazin-1-yl]-3-oxo-propionamide収率 34.6%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6228Dimethylformamide溶媒

反応条件

温度
10 °C

実験手順

HOBt (34 mg, 0.25 mmol) and DIPEA (67.9 mg, 0.51 mmol) were added to a stirred solution of 2-bromobenzoic acid (42 mg, 0.21 mmol) in DMF (2 mL). The reaction mixture was cooled to 10° C. and EDCI.HCl (48 mg, 0.25 mmol) followed by N-biphenyl-4-yl-3-oxo-3-piperazin-1-yl-propionamide hydrochloride (75 mg, 0.2 mmol) were added. The reaction mixture was stirred at room temperature overnight, then diluted with water and the product extracted with ethyl acetate. The ethyl acetate was washed with brine solution, dried over Na2SO4 and evaporated. The residue was purified by column chromatography using silica gel 60-120 mesh (80% ethyl acetate in hexane) to afford 35 mg (33%) of N-biphenyl-4-yl-3-[4-(2-bromo-benzoyl)-piperazin-1-yl]-3-oxo-propionamide. LCMS: 506.10 (M+1)+ 96.5%, 1H NMR: (CDCl3): δ 9.6 (d, 1H), 7.6 (m, 6H), 7.35 (m, 5H), 4.0 (m, 1H), 3.74 (m, 4H), 3.54 (d, 2H), 3.3 (m, 2H).

後処理

  1. additionwere added
  2. extractionthe product extracted with ethyl acetate
  3. washThe ethyl acetate was washed with brine solution
  4. dry with materialdried over Na2SO4
  5. customevaporated
  6. customThe residue was purified by column chromatography

出典と根拠

ORDレコード
ord-923b0d17fb2748ceb991824678021a47
出典データセット
uspto-grants-2011_10
特許番号
US08039463B2

反応ノート

読み込み中…