3-Amino-3-methylpiperidine-2,6-dione hydrochloride → 4-(3-Chloro-benzylamino)-2-(3-methyl-2,6-dioxo-piperidin-3-yl)-isoindole-1,3-dione

HRID 906807노트

반응식

HRID 906807 반응식
[Cl:1][C:2]1[CH:3]=[C:4]([CH:19]=[CH:20][CH:21]=1)[CH2:5][NH:6][C:7]1[CH:15]=[CH:14][CH:13]=[C:9]([C:10]([OH:12])=O)[C:8]=1[C:16]([OH:18])=O.Cl.[NH2:23][C:24]1([CH3:32])[CH2:29][CH2:28][C:27](=[O:30])[NH:26][C:25]1=[O:31]>N1C=CC=CC=1>[Cl:1][C:2]1[CH:3]=[C:4]([CH:19]=[CH:20][CH:21]=1)[CH2:5][NH:6][C:7]1[CH:15]=[CH:14][CH:13]=[C:9]2[C:8]=1[C:16](=[O:18])[N:23]([C:24]1([CH3:32])[CH2:29][CH2:28][C:27](=[O:30])[NH:26][C:25]1=[O:31])[C:10]2=[O:12]

참가 물질

4

반응물 2

HCID 219282523-Amino-3-methylpiperidine-2,6-dione hydrochlorideHCID 219886073-(3-Chloro-benzylamino)-phthalic acid

생성물 1

HCID 219885594-(3-Chloro-benzylamino)-2-(3-methyl-2,6-dioxo-piperidin-3-yl)-isoindole-1,3-dione수율 41%

시약·촉매·용매 1

HCID 1049Pyridine용매

실험 절차

To a stirred solution of 3-(3-Chloro-benzylamino)-phthalic acid (4 mmol) in pyridine (50 ml) was added 3-amino-3-methyl-piperidine-2,6-dione hydrochloride (0.71 g, 4 mmol). The reaction mixture was heated to reflux for 18 h. The solvent was evaporated in vacuo and the residue dissolved in methylene chloride (150 ml). The methylene chloride mixture was washed with water (2×100 ml), 0.1N HCl (2×100 ml), brine (1×100 ml), dried (magnesium sulfate), and filtered. The solvent was evaporated in vacuo to give a yellow semi-solid. The residue was purified by preparative HPLC (Symmetry C8, isocratic, 50% acetonitrile/water) to give 0.67 g (41%) of product as a yellow solid: mp 199-201° C.; 1H NMR (DMSO-d6) δ 10.99 (s, 1H), 7.52-7.28 (m, 6H), 6.97-6.89 (m, 2H), 4.54 (d, J=6.1 Hz, 1H), 2.78-2.50 (m, 3H), 2.08-1.98 (m, 1H), 1.89 (s, 3H); 13C NMR (DMSO-d6) δ 172.42, 172.19, 169.62, 167.92, 145.59, 141.82, 136.02, 133.14, 132.06, 130.35, 126.91, 126.78, 125.60, 117.23, 110.42, 109.49, 58.37, 44.74, 29.27, 28.62, 21.02; Anal. Calcd. For C21H18ClN3O4: C, 61.24; H, 4.41; N, 10.20. Found: C, 61.30; H, 4.28; N, 9.97.

후처리

  1. temperatureThe reaction mixture was heated
  2. temperatureto reflux for 18 h
  3. customThe solvent was evaporated in vacuo
  4. dissolutionthe residue dissolved in methylene chloride (150 ml)
  5. washThe methylene chloride mixture was washed with water (2×100 ml), 0.1N HCl (2×100 ml), brine (1×100 ml)
  6. dry with materialdried (magnesium sulfate)
  7. filtrationfiltered
  8. customThe solvent was evaporated in vacuo
  9. customto give a yellow semi-solid
  10. customThe residue was purified by preparative HPLC (Symmetry C8, isocratic, 50% acetonitrile/water)

출처 및 근거

ORD 기록
ord-07dd50fc155c466f930210a3ce179165
출처 데이터셋
uspto-grants-2011_09
특허 번호
US08012997B2

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