Hydrochloric Acid → tert-Butyl (6-(7-(4-amino-3-fluorophenoxy)thieno[3,2-b]pyridin-2-yl)pyridin-3-yl)methyl(2-methoxyethyl)carbamate

HRID 1401314

Reaktionsgleichung

Reaktionsgleichung von HRID 1401314
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([OH:8])=[CH:4][C:3]=1[F:9].CC(C)([O-])C.[K+].Cl[C:17]1[CH:22]=[CH:21][N:20]=[C:19]2[CH:23]=[C:24]([C:26]3[N:31]=[CH:30][C:29]([CH2:32][N:33]([CH2:41][CH2:42][O:43][CH3:44])[C:34](=[O:40])[O:35][C:36]([CH3:39])([CH3:38])[CH3:37])=[CH:28][CH:27]=3)[S:25][C:18]=12.Cl>CS(C)=O.O.C(Cl)Cl.CCOC(C)=O>[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([O:8][C:17]2[CH:22]=[CH:21][N:20]=[C:19]3[CH:23]=[C:24]([C:26]4[N:31]=[CH:30][C:29]([CH2:32][N:33]([CH2:41][CH2:42][O:43][CH3:44])[C:34](=[O:40])[O:35][C:36]([CH3:37])([CH3:38])[CH3:39])=[CH:28][CH:27]=4)[S:25][C:18]=23)=[CH:4][C:3]=1[F:9]

Komponenten

9

Edukt 4

HCID 313Hydrochloric AcidHCID 27359194-Amino-3-fluorophenolHCID 23665647Potassium tert-butoxideHCID 57919613tert-Butyl ((6-(7-chlorothieno[3,2-b]pyridin-2-yl)pyridin-3-yl)methyl)(2-methoxyethyl)carbamate

Produkt 1

HCID 57919486tert-Butyl (6-(7-(4-amino-3-fluorophenoxy)thieno[3,2-b]pyridin-2-yl)pyridin-3-yl)methyl(2-methoxyethyl)carbamateAusbeute 32 %

Reagenzien, Katalysatoren, Lösungsmittel 4

HCID 679Dimethyl SulfoxideLösungsmittelHCID 962WaterLösungsmittel2×HCID 6344DichloromethaneLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

To a solution of 4-amino-3-fluorophenol (19) in DMSO (12 mL) was added potassium tert-butoxide (0.824 g, 7.34 mmol). After 30 min, intermediate 11 (2.451 g, 5.65 mmol) was added and the reaction mixture was heated at 100° C. for 1.5 h, cooled to room temperature, poured in water (50 mL) at 40-45° C. and stirred for 30 min. EtOAc (40 mL), DCM (40 mL) and water (40 ml) were added and the pH was adjusted to 7 by addition of HCl. Solids were removed by filtration through a paper filter and the two phases were separated. The organic layer was collected, dried over anhydrous Na2SO4, filtered and concentrated. The residue was purified by flash column chromatography (eluent DCM/MeOH:99/1, 98/2, 95/5), to afford intermediate 20 (0.952 g, 32% yield). MS (m/z): 525.2 (M+H).

Aufarbeitung

  1. temperaturecooled to room temperature
  2. customSolids were removed by filtration through a paper
  3. filtrationfilter
  4. customthe two phases were separated
  5. customThe organic layer was collected
  6. dry with materialdried over anhydrous Na2SO4
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customThe residue was purified by flash column chromatography (eluent DCM/MeOH:99/1, 98/2, 95/5)

Quellen und Nachweise

ORD-Eintrag
ord-8851370faeec41e79c3ecc7d0347828a
Quelldatensatz
uspto-grants-2014_12
Patentnummer
US08907091B2

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