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Tetrahydrofuran → (S)-N-[4-(2-methyl-6-nitro-2,3-dihydroimidazo[2,1-b]oxazol-2-ylmethyl)piperazin-1-yl]-N-(4-trifluoromethylbenzyl)amine

HRID 856344
ノート
印刷プレビュー

反応式

HRID 856344 の反応式
[CH3:1][C@@:2]1([CH2:13][N:14]2[CH2:19][CH2:18][N:17]([N:20]=[CH:21][C:22]3[CH:27]=[CH:26][C:25]([C:28]([F:31])([F:30])[F:29])=[CH:24][CH:23]=3)[CH2:16][CH2:15]2)[O:6][C:5]2=[N:7][C:8]([N+:10]([O-:12])=[O:11])=[CH:9][N:4]2[CH2:3]1.C1COCC1.[BH4-].[Na+]>CO>[CH3:1][C@@:2]1([CH2:13][N:14]2[CH2:15][CH2:16][N:17]([NH:20][CH2:21][C:22]3[CH:27]=[CH:26][C:25]([C:28]([F:31])([F:29])[F:30])=[CH:24][CH:23]=3)[CH2:18][CH2:19]2)[O:6][C:5]2=[N:7][C:8]([N+:10]([O-:12])=[O:11])=[CH:9][N:4]2[CH2:3]1
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 8028TetrahydrofuranHCID 4311764Sodium borohydrideHCID 66887963(S)-N-[4-(2-methyl-6-nitro-2,3-dihydroimidazo[2,1-b]oxazol-2-ylmethyl)piperazin-1-yl]-N-(4-trifluoromethylbenzylidene)amine

生成物 1

HCID 69481419(S)-N-[4-(2-methyl-6-nitro-2,3-dihydroimidazo[2,1-b]oxazol-2-ylmethyl)piperazin-1-yl]-N-(4-trifluoromethylbenzyl)amine収率 31.6%

試薬・触媒・溶媒 1

HCID 887
Methanol
溶媒

実験手順

To a mixture of (S)-N-[4-(2-methyl-6-nitro-2,3-dihydroimidazo[2,1-b]oxazol-2-ylmethyl)piperazin-1-yl]-N-(4-trifluoromethylbenzylidene)amine prepared in Example 504 (100 mg, 0.23 mmol) and THF (4 ml), sodium borohydride (13 mg, 0.34 mmol) was added with cooling on ice-bath followed by stirring at room temperature for 30 minutes. To the reaction mixture, methanol (1 ml) was added, and the solution was concentrated under reduced pressure. The residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=2/1) to afford (S)-N-[4-(2-methyl-6-nitro-2,3-dihydroimidazo[2,1-b]oxazol-2-ylmethyl)piperazin-1-yl]-N-(4-trifluoromethylbenzyl)amine (32 mg, yield 31%) as a light yellow powder.

後処理

  1. additionwas added
  2. temperaturewith cooling on ice-bath
  3. concentrationthe solution was concentrated under reduced pressure
  4. customThe residue was purified by silica gel column chromatography (n-hexane/ethyl acetate=2/1)

出典と根拠

ORDレコード
ord-735e6f42c03d4daea6b86fd19a73fed4
出典データセット
uspto-grants-2007_08
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07262212B2

反応ノート

読み込み中…

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