Phosphorus oxychloride → (S)-tert-butyl 1-((5-(5-(2-methoxybenzylcarbamoyl)-3-(trifluoromethyl)-1H-pyrazol-1-yl)thiophen-2-yl)methylamino)-1-oxopropan-2-ylcarbamate

HRID 2196516ノート

反応式

HRID 2196516 の反応式
[C:1]([O:5][C:6]([NH:8][C@@H:9]([CH3:31])[C:10]([NH:12][CH2:13][C:14]1[S:18][C:17]([N:19]2[C:23]([C:24](O)=[O:25])=[CH:22][C:21]([C:27]([F:30])([F:29])[F:28])=[N:20]2)=[CH:16][CH:15]=1)=[O:11])=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH3:32][O:33][C:34]1[CH:41]=[CH:40][CH:39]=[CH:38][C:35]=1[CH2:36][NH2:37].O=P(Cl)(Cl)Cl>N1C=CC=CC=1>[CH3:32][O:33][C:34]1[CH:41]=[CH:40][CH:39]=[CH:38][C:35]=1[CH2:36][NH:37][C:24]([C:23]1[N:19]([C:17]2[S:18][C:14]([CH2:13][NH:12][C:10](=[O:11])[C@@H:9]([NH:8][C:6](=[O:7])[O:5][C:1]([CH3:3])([CH3:4])[CH3:2])[CH3:31])=[CH:15][CH:16]=2)[N:20]=[C:21]([C:27]([F:29])([F:30])[F:28])[CH:22]=1)=[O:25]

参加物

5

反応物 3

HCID 24813Phosphorus oxychlorideHCID 812922-MethoxybenzylamineHCID 69298544HCID 69298544、化合物

生成物 1

HCID 69097944(S)-tert-butyl 1-((5-(5-(2-methoxybenzylcarbamoyl)-3-(trifluoromethyl)-1H-pyrazol-1-yl)thiophen-2-yl)methylamino)-1-oxopropan-2-ylcarbamate収率 24.2%

試薬・触媒・溶媒 1

HCID 1049Pyridine溶媒

反応条件

温度
0 °C

実験手順

To a stirred solution of 25 (0.059 g, 0.128 mmol) in pyridine (0.851 mL) at 0° C. was added 2-methoxybenzylamine (0.020 mL, 0.153 mmol) and followed by dropwise addition of POCl3 (0.013 mL, 0.140 mmol). The mixture was stirred for 30 min at 0° C., then for 1 h from 0° C. to 21° C., then for 16 h at room temperature. The mixture was quenched with water and extracted with ethyl acetate, washed with brine, dried (MgSO4) filtered and concentrated. The residue was purified by silica gel column chromatography with gradient of EtOAc (20-60%) in hexanes to afford 26e (18 mg, 24%) as a white solid. LRMS (ESI): calc. 581.2; found 604.3 (MNa)+.

後処理

  1. waitfor 1 h from 0° C. to 21° C.
  2. waitfor 16 h at room temperature
  3. customThe mixture was quenched with water
  4. extractionextracted with ethyl acetate
  5. washwashed with brine
  6. dry with materialdried (MgSO4)
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customThe residue was purified by silica gel column chromatography with gradient of EtOAc (20-60%) in hexanes

出典と根拠

ORDレコード
ord-e7d1362089354254b629f80a61d06067
出典データセット
uspto-grants-2012_12
特許番号
US08338437B2

反応ノート

読み込み中…