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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 2097933
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HRID 2097933 반응식
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
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참가 물질

6

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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

생성물 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
수율 56.8%

시약·촉매·용매 1

HCID 7854Propionitrile용매

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온도
105 °C

실험 절차

(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.

후처리

  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

출처 및 근거

ORD 기록
ord-5a030142ec6a4a828dfab62801a60a83
출처 데이터셋
uspto-grants-2013_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08450323B2

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