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Diisopropylethylamine → (S)-3-((4-(4-fluoro-2-methylphenyl)piperazin-1-yl)methyl)-6a,7,8,9-tetrahydropyrido[3,2-e]pyrrolo[1,2-a]pyrazin-6(5H)-one

HRID 69731
ノート
印刷プレビュー

反応式

HRID 69731 の反応式
O[CH2:2][C:3]1[CH:12]=[N:11][C:10]2[N:9]3[CH2:13][CH2:14][CH2:15][C@H:8]3[C:7](=[O:16])[NH:6][C:5]=2[CH:4]=1.Cl.Cl.[F:19][C:20]1[CH:25]=[CH:24][C:23]([N:26]2[CH2:31][CH2:30][NH:29][CH2:28][CH2:27]2)=[C:22]([CH3:32])[CH:21]=1.[I-].C(C[P+](C)(C)C)#N.C(N(CC)C(C)C)(C)C>C(#N)CC>[F:19][C:20]1[CH:25]=[CH:24][C:23]([N:26]2[CH2:31][CH2:30][N:29]([CH2:2][C:3]3[CH:12]=[N:11][C:10]4[N:9]5[CH2:13][CH2:14][CH2:15][C@H:8]5[C:7](=[O:16])[NH:6][C:5]=4[CH:4]=3)[CH2:28][CH2:27]2)=[C:22]([CH3:32])[CH:21]=1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 81531DiisopropylethylamineHCID 10514344(Cyanomethyl)trimethylphosphanium iodideHCID 184230711-(4-Fluoro-2-methylphenyl)piperazine dihydrochlorideHCID 58324378(S)-3-(hydroxymethyl)-6a,7,8,9-tetrahydropyrido[3,2-e]pyrrolo[1,2-a]pyrazin-6(5H)-one

生成物 1

HCID 46864686(S)-3-((4-(4-fluoro-2-methylphenyl)piperazin-1-yl)methyl)-6a,7,8,9-tetrahydropyrido[3,2-e]pyrrolo[1,2-a]pyrazin-6(5H)-one
収率 56.8%

試薬・触媒・溶媒 1

HCID 7854Propionitrile溶媒

反応条件

温度
105 °C

実験手順

(S)-3-(hydroxymethyl)-6a,7,8,9-tetrahydropyrido[3,2-e]pyrrolo[1,2-a]pyrazin-6(5H)-one (100 mg, 0.456 mmol), 1-(4-fluoro-2-methylphenyl)piperazine dihydrochloride (122 mg, 0.456 mmol), (cyanomethyl)trimethylphosphonium iodide (166 mg, 0.684 mmol) and N,N-diisopropylethylamine (0.398 ml, 2.281 mmol) were suspended in propiononitrile (Volume: 1.370 ml) and heated in a closed vial at 90-120° C. for 4 h. The reaction mixture became a dark brown solution. It was cooled to room temperature, concentrated in vacuo, dissolved in DMSO (2 mL) and purified using HPLC (basic, 45-95% ACN in water, basic). The fractions were concentrated in vacuo and the resulting solid was recrystallized from water-MeOH (2:1, 6 mL) and dried in vacuum to afford (S)-3-((4-(4-fluoro-2-methylphenyl)piperazin-1-yl)methyl)-6a,7,8,9-tetrahydropyrido[3,2-e]pyrrolo[1,2-a]pyrazin-6(5H)-one (102.3 mg, 0.259 mmol, 56.7% yield) as an off-white solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 1.80-2.02 (m, 3 H) 2.09-2.20 (m, 1 H) 2.23 (s, 3 H) 2.37-2.49 (m, 4 H) 2.77 (br. s., 4 H) 3.34-3.44 (m, 3 H) 3.52-3.65 (m, 1 H) 3.93-4.03 (m, 1 H) 6.88-7.07 (m, 4 H) 7.62 (s, 1 H) 10.44 (s, 1 H). [M+H] calc'd for C22H26FN5O, 396; found, 396.

後処理

  1. temperatureIt was cooled to room temperature
  2. concentrationconcentrated in vacuo
  3. dissolutiondissolved in DMSO (2 mL)
  4. custompurified
  5. concentrationThe fractions were concentrated in vacuo
  6. customthe resulting solid was recrystallized from water-MeOH (2:1, 6 mL)
  7. customdried in vacuum

出典と根拠

ORDレコード
ord-aa31cd9b78244beba05f9026dd1b46d7
出典データセット
uspto-grants-2014_09
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08822470B2

反応ノート

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