Cesium carbonate → isopropyl ((S)-7-cyano-4-(((2R,3S)-3-hydroxytetrahydrofuran-2-yl)Methyl)-1,2,3,4-tetrahydrocyclopenta[b]indol-2-yl)carbaMate

HRID 1928581노트

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HRID 1928581 반응식
[CH:1]([O:4][C:5](=[O:21])[NH:6][C@@H:7]1[CH2:20][C:10]2[NH:11][C:12]3[CH:13]=[CH:14][C:15]([C:18]#[N:19])=[CH:16][C:17]=3[C:9]=2[CH2:8]1)([CH3:3])[CH3:2].CC1C=CC(S(O[CH2:33][C@@H:34]2[C@@H:38]([OH:39])[CH2:37][CH2:36][O:35]2)(=O)=O)=CC=1.C(=O)([O-])[O-].[Cs+].[Cs+]>CN1CCCC1.C(OCC)(=O)C>[CH:1]([O:4][C:5](=[O:21])[NH:6][C@@H:7]1[CH2:20][C:10]2[N:11]([CH2:33][C@@H:34]3[C@@H:38]([OH:39])[CH2:37][CH2:36][O:35]3)[C:12]3[CH:13]=[CH:14][C:15]([C:18]#[N:19])=[CH:16][C:17]=3[C:9]=2[CH2:8]1)([CH3:3])[CH3:2]

참가 물질

6

반응물 3

HCID 10796Cesium carbonateHCID 58271236[(2R,3S)-3-hydroxytetrahydrofuran-2-yl]methyl 4-methylbenzenesulfonateHCID 66933207(S)-(7-Cyano-1,2,3,4-tetrahydrocyclopenta[b]indol-2-yl)carbamic Acid Isopropyl Ester

생성물 1

HCID 52914985isopropyl ((S)-7-cyano-4-(((2R,3S)-3-hydroxytetrahydrofuran-2-yl)Methyl)-1,2,3,4-tetrahydrocyclopenta[b]indol-2-yl)carbaMate수율 72.7%

시약·촉매·용매 2

HCID 84541-Methylpyrrolidine용매HCID 8857Ethyl Acetate용매

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온도
65 °C

실험 절차

A mixture of ((S)-7-cyano-1,2,3,4-tetrahydro-cyclopenta[b]indol-2-yl)-carbamic acid isopropyl ester (2.50 g, 8.82 mmol), [(2R,3S)-3-hydroxytetrahydrofuran-2-yl]methyl 4-methylbenzenesulfonate (3.10 g, 11.38 mmol), and cesium carbonate (5.00 g, 15.35 mmol) in N-methylpyrrolidine (25 mL) is heated in a 65° C. oil bath overnight. After cooling to ambient temperature, the reaction is diluted with ethyl acetate (120 mL) and washed with water (3×100 mL) and brine. The organic portion is dried over sodium sulfate, filtered, and concentrated to dryness. The resulting residue is purified by medium pressure liquid chromatography, eluting with ethyl acetate. Fractions containing pure product are combined and concentrated to afford 2.46 g (72%) of the title compound. LC-ES/MS m/z 384.2 [M+H]+, TR=1.90 min. (Symyx Draw 3.1 (IUPAC Name) provides the following name for the compound of Example 1: Isopropyl N-[(2S)-7-cyano-4-[[(2R,3S)-3-hydroxytetrahydrofuran-2-yl]methyl]-2,3-dihydro-1H-cyclopenta[b]indol-2-yl]carbamate.)

후처리

  1. temperatureAfter cooling to ambient temperature
  2. washwashed with water (3×100 mL) and brine
  3. dry with materialThe organic portion is dried over sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated to dryness
  6. customThe resulting residue is purified by medium pressure liquid chromatography
  7. washeluting with ethyl acetate
  8. additionFractions containing pure product
  9. concentrationconcentrated

출처 및 근거

ORD 기록
ord-23a0aff16c6547539192ddf4e67fd943
출처 데이터셋
uspto-grants-2012_05
특허 번호
US08183388B2

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