1-Isopropylpiperazine → 2-{3-[4-(1-Methylethyl)-1-piperazinyl]propanoyl}-6-(methyloxy)-7-nitro-1,2,3,4-tetrahydroisoquinoline

HRID 1014359노트

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HRID 1014359 반응식
[C:1]([N:5]1[CH2:14][CH2:13][C:12]2[C:7](=[CH:8][C:9]([N+:17]([O-:19])=[O:18])=[C:10]([O:15][CH3:16])[CH:11]=2)[CH2:6]1)(=[O:4])[CH:2]=[CH2:3].[CH:20]([N:23]1[CH2:28][CH2:27][NH:26][CH2:25][CH2:24]1)([CH3:22])[CH3:21]>CO>[CH3:21][CH:20]([N:23]1[CH2:28][CH2:27][N:26]([CH2:3][CH2:2][C:1]([N:5]2[CH2:14][CH2:13][C:12]3[C:7](=[CH:8][C:9]([N+:17]([O-:19])=[O:18])=[C:10]([O:15][CH3:16])[CH:11]=3)[CH2:6]2)=[O:4])[CH2:25][CH2:24]1)[CH3:22]

참가 물질

4

반응물 2

HCID 780131-IsopropylpiperazineHCID 594417802-Acryloyl-6-(methyloxy)-7-nitro-1,2,3,4-tetrahydroisoquinoline

생성물 1

HCID 594417872-{3-[4-(1-Methylethyl)-1-piperazinyl]propanoyl}-6-(methyloxy)-7-nitro-1,2,3,4-tetrahydroisoquinoline수율 45.1%

시약·촉매·용매 1

HCID 887Methanol용매

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온도
65 °C

실험 절차

A solution of 2-acryloyl-6-(methyloxy)-7-nitro-1,2,3,4-tetrahydroisoquinoline (425 mg, 1.62 mmol) in methanol (5 mL) was treated with 1-isopropylpiperzine (1.0 mL, 7.0 mmol, Oakwood Products) and heated at 65° C. in a sealed tube for 16 h. The mixture was cooled, concentrated, and partitioned between ethyl acetate and saturated aqueous ammonium chloride. The organic layer was separated, dried over magnesium sulfate, filtered, and purified by chromatography on SiO2 (dichloromethane to 25% methanol/dichloromethane) to give 2-{3-[4-(1-methylethyl)-1-piperazinyl]propanoyl}-6-(methyloxy)-7-nitro-1,2,3,4-tetrahydroisoquinoline (285 mg, 0.731 mmol, 45%). ESIMS (M+H)+=391.

후처리

  1. temperatureThe mixture was cooled
  2. concentrationconcentrated
  3. custompartitioned between ethyl acetate and saturated aqueous ammonium chloride
  4. customThe organic layer was separated
  5. dry with materialdried over magnesium sulfate
  6. filtrationfiltered
  7. custompurified by chromatography on SiO2 (dichloromethane to 25% methanol/dichloromethane)

출처 및 근거

ORD 기록
ord-5d23273814da4404bac5057f7c93d49e
출처 데이터셋
uspto-grants-2011_07
특허 번호
US07981903B2

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