Hydrochloric Acid → 2-(7-(4-Isopropoxy-3-(trifluoromethyl)benzyloxy)-2,3-dihydro-1H-pyrrolo[1,2-a]indol-1-yl)acetic Acid

HRID 1964122Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1964122
[CH:1]([O:4][C:5]1[CH:32]=[CH:31][C:8]([CH2:9][O:10][C:11]2[CH:19]=[CH:18][C:17]3[N:16]4[CH2:20][CH2:21][CH:22]([CH2:23][C:24]([O:26]C(C)(C)C)=[O:25])[C:15]4=[CH:14][C:13]=3[CH:12]=2)=[CH:7][C:6]=1[C:33]([F:36])([F:35])[F:34])([CH3:3])[CH3:2].[Li+].[OH-].Cl>>[CH:1]([O:4][C:5]1[CH:32]=[CH:31][C:8]([CH2:9][O:10][C:11]2[CH:19]=[CH:18][C:17]3[N:16]4[CH2:20][CH2:21][CH:22]([CH2:23][C:24]([OH:26])=[O:25])[C:15]4=[CH:14][C:13]=3[CH:12]=2)=[CH:7][C:6]=1[C:33]([F:36])([F:34])[F:35])([CH3:3])[CH3:2]

Komponenten

4

Edukt 3

HCID 313Hydrochloric AcidHCID 3939Lithium HydroxideHCID 67248886tert-Butyl 2-(7-(4-Isopropoxy-3-(trifluoromethyl)benzyloxy)-2,3-dihydro-1H-pyrrolo[1,2-a]indol-1-yl)acetate

Produkt 1

HCID 583296112-(7-(4-Isopropoxy-3-(trifluoromethyl)benzyloxy)-2,3-dihydro-1H-pyrrolo[1,2-a]indol-1-yl)acetic AcidAusbeute 36,9 %

Reaktionsbedingungen

Temperatur
70 °C

Versuchsvorschrift

To a solution of tert-butyl 2-(7-(4-isopropoxy-3-(trifluoromethyl)benzyloxy)-2,3-dihydro-1H-pyrrolo[1,2-a]indol-1-yl)acetate (0.418 g, 0.830 mmol) in dioxanes (10 mL) was added 1.0 M solution of LiOH (aq, 2.5 mL). The reaction was stirred at 70° C. for 4 h and acidified with 1 M HCl (aq) to pH 3.0. The mixture was extracted with EtOAc, dried over Na2SO4, filtered, and concentrated. The residue was purified by silica gel column chromatography to give the title compound as a yellow solid (137 mg). LCMS m/z=448.4 [M+H]+; 1H NMR (400 MHz, DMSO-d6) δ ppm 1.28 (d, J=5.94 Hz, 6H), 2.15-2.26 (m, 1H), 2.51-2.59 (m, 1H), 2.64-2.72 (m, 1H), 2.72-2.82 (m, 1H), 3.53-3.63 (m, 1H), 3.91-4.00 (m, 1H), 4.05-4.14 (m, 1H), 4.74-4.82 (m, 1H), 5.05 (s, 2H), 6.01 (s, 1H), 6.75 (dd, J=8.72, 2.40 Hz, 1H), 7.06 (d, J=2.27 Hz, 1H), 7.18 (d, J=8.84 Hz, 1H), 7.26-7.32 (m, 1H), 7.63-7.69 (m, 2H), 12.28 (bs, 1H).

Aufarbeitung

  1. extractionThe mixture was extracted with EtOAc
  2. dry with materialdried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe residue was purified by silica gel column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-67c57f32730b4ec0bf975afa11c9484d
Quelldatensatz
uspto-grants-2013_04
Patentnummer
US08415484B2

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