Lithium Hydroxide → 1-{[1-(4-Furan-3-ylbenzyl)-5-(quinolin-2-ylmethoxy)-1H-benzimidazol-2-yl]methyl}cyclopentanecarboxylic acid

HRID 2178463Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2178463
[O:1]1[CH:5]=[CH:4][C:3]([C:6]2[CH:44]=[CH:43][C:9]([CH2:10][N:11]3[C:15]4[CH:16]=[CH:17][C:18]([O:20][CH2:21][C:22]5[CH:31]=[CH:30][C:29]6[C:24](=[CH:25][CH:26]=[CH:27][CH:28]=6)[N:23]=5)=[CH:19][C:14]=4[N:13]=[C:12]3[CH2:32][C:33]3([C:38]([O:40]CC)=[O:39])[CH2:37][CH2:36][CH2:35][CH2:34]3)=[CH:8][CH:7]=2)=[CH:2]1.C1COCC1.[Li+].[OH-]>CO>[O:1]1[CH:5]=[CH:4][C:3]([C:6]2[CH:7]=[CH:8][C:9]([CH2:10][N:11]3[C:15]4[CH:16]=[CH:17][C:18]([O:20][CH2:21][C:22]5[CH:31]=[CH:30][C:29]6[C:24](=[CH:25][CH:26]=[CH:27][CH:28]=6)[N:23]=5)=[CH:19][C:14]=4[N:13]=[C:12]3[CH2:32][C:33]3([C:38]([OH:40])=[O:39])[CH2:37][CH2:36][CH2:35][CH2:34]3)=[CH:43][CH:44]=2)=[CH:2]1

Komponenten

5

Edukt 3

HCID 3939Lithium HydroxideHCID 8028TetrahydrofuranHCID 90416780Ethyl 1-((1-(4-(furan-3-yl)benzyl)-5-(quinolin-2-ylmethoxy)-1H-benzo[d]imidazol-2-yl)methyl)cyclopentanecarboxylate

Produkt 1

HCID 862809891-{[1-(4-Furan-3-ylbenzyl)-5-(quinolin-2-ylmethoxy)-1H-benzimidazol-2-yl]methyl}cyclopentanecarboxylic acid

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

To a 20 mL vial were added ethyl 1-((1-(4-(furan-3-yl)benzyl)-5-(quinolin-2-ylmethoxy)-1H-benzo[d]imidazol-2-yl)methyl)cyclopentanecarboxylate (60 mg, 0.1 mmol), THF (1.3 mL) and MeOH (1.3 mL) followed by LiOH (1.4 mL, 1 M). The reaction mixture was heated at 80° C. for 1.5 h. The mixture was cooled to RT and concentrated to dryness. Water (5 mL) was added and the pH was adjusted to ˜5-6 using 1 M HCl. To the mixture was added DCM (5 mL) and the mixture was stirred for 1 h at RT. The organic layer was separated then concentrated to dryness. The resulting residue was purified using FCC or reverse phase HPLC to provide the title compound. MS (ESI): mass calcd. for C35H31N3O4, 557.23; m/z found, 558.2 [M+H]+. 1H NMR (500 MHz, CDCl3) δ 8.22 (d, J=8.5, 1H), 8.10 (d, J=8.5, 1H), 7.84 (d, J=8.1, 1H), 7.77-7.69 (m, 3H), 7.58-7.54 (m, 1H), 7.48-7.46 (m, 1H), 7.42 (d, J=8.1, 2H), 7.35-7.34 (m, 1H), 7.16 (d, J=8.8, 1H), 7.04-7.01 (m, 3H), 6.65 (s, 1H), 5.42 (s, 2H), 5.35 (s, 2H), 3.12 (s, 2H), 2.32-2.26 (m, 2H), 1.73-1.68 (m, 2H), 1.65-1.52 (m, 4H).

Aufarbeitung

  1. temperatureThe mixture was cooled to RT
  2. concentrationconcentrated to dryness
  3. additionWater (5 mL) was added
  4. additionTo the mixture was added DCM (5 mL)
  5. customThe organic layer was separated
  6. concentrationthen concentrated to dryness
  7. customThe resulting residue was purified

Quellen und Nachweise

ORD-Eintrag
ord-60b5f0c67ec14d5da4f5bc8e2f04610c
Quelldatensatz
uspto-grants-2015_06
Patentnummer
US09067917B2

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