Cesium carbonate → Ethyl 2-(2-(3-Cyano-4-isopropoxybenzyloxy)-6,7,8,9-tetrahydropyrido[1,2-a]indol-9-yl)acetate

HRID 515742

Reaktionsgleichung

Reaktionsgleichung von HRID 515742
[OH:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[N:7]1[CH2:11][CH2:12][CH2:13][CH:14]([CH2:15][C:16]([O:18][CH2:19][CH3:20])=[O:17])[C:6]1=[CH:5]2.C(=O)([O-])[O-].[Cs+].[Cs+].Cl[CH2:28][C:29]1[CH:30]=[CH:31][C:32]([O:37][CH:38]([CH3:40])[CH3:39])=[C:33]([CH:36]=1)[C:34]#[N:35]>CN(C=O)C>[C:34]([C:33]1[CH:36]=[C:29]([CH:30]=[CH:31][C:32]=1[O:37][CH:38]([CH3:40])[CH3:39])[CH2:28][O:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[N:7]1[CH2:11][CH2:12][CH2:13][CH:14]([CH2:15][C:16]([O:18][CH2:19][CH3:20])=[O:17])[C:6]1=[CH:5]2)#[N:35]

Komponenten

5

Edukt 3

HCID 10796Cesium carbonateHCID 668477035-(Chloromethyl)-2-(propan-2-yloxy)benzonitrileHCID 67249257Ethyl 2-(2-hydroxy-6,7,8,9-tetrahydropyrido[1,2-a]indol-9-yl)acetate

Produkt 1

HCID 67248888Ethyl 2-(2-(3-Cyano-4-isopropoxybenzyloxy)-6,7,8,9-tetrahydropyrido[1,2-a]indol-9-yl)acetateAusbeute 85,7 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
75 °C

Versuchsvorschrift

To a mixture of ethyl 2-(2-hydroxy-6,7,8,9-tetrahydropyrido[1,2-a]indol-9-yl)acetate (50 mg, 0.183 mmol) and cesium carbonate (89 mg, 0.274 mmol) in DMF (2 mL) was added 5-(chloromethyl)-2-isopropoxybenzonitrile (46 mg, 0.22 mmol). The reaction was heated at 75° C. for 5 h and cooled down. The solid was filtered and washed with ethyl acetate. The combined solvent was evaporated, and the residue was purified by silica gel column chromatography to give the title compound (70 mg). LCMS m/z=447.4 [M+H]+; 1H NMR (400 MHz, CDCl3) δ ppm 1.30 (t, J=7.1 Hz, 3H), 1.40 (d, J=6.1 Hz, 6H), 1.51-1.61 (m, 1H), 1.98-2.08 (m, 1H), 2.08-2.24 (m, 2H), 2.55 (dd, J=15.6, 8.6 Hz, 1H), 2.93 (dd, J=15.6, 5.4 Hz, 1H), 3.45-3.54 (m, 1H), 3.82-3.92 (m, 1H), 4.10-4.17 (m, 1H), 4.22 (q, J=7.1 Hz, 2H), 4.61-4.68 (m, 1H), 5.00 (s, 2H), 6.17 (s, 1H), 6.85 (dd, J=8.8, 2.4 Hz, 1H), 6.95 (d, J=8.8 Hz, 1H), 7.05 (d, J=2.4 Hz, 1H), 7.16 (d, J=8.7 Hz, 1H), 7.58 (dd, J=8.7, 2.2 Hz, 1H), 7.65 (d, J=2.2 Hz, 1H).

Aufarbeitung

  1. temperaturecooled down
  2. filtrationThe solid was filtered
  3. washwashed with ethyl acetate
  4. customThe combined solvent was evaporated
  5. customthe residue was purified by silica gel column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-2b389fc35afb43fca75c62174a7961a6
Quelldatensatz
uspto-grants-2015_08
Patentnummer
US09108969B2

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