Hydrochloric Acid → 7-[2-(4-Fluorophenyl)-5-isopropyl-3-phenyl-4-phenylcarbamoyl-pyrrol-1-yl]-3,5-dioxo-heptanoic acid, t-butyl ester

HRID 351460

Reaktionsgleichung

Reaktionsgleichung von HRID 351460
[Na].[C:2]([O:8][C:9]([CH3:12])([CH3:11])[CH3:10])(=[O:7])[CH2:3][C:4]([CH3:6])=[O:5].[Li]CCCC.[C:18]1([NH:24][C:25]([C:27]2[C:31]([C:32]3[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=3)=[C:30]([C:38]3[CH:43]=[CH:42][C:41]([F:44])=[CH:40][CH:39]=3)[N:29]([CH2:45][CH2:46][C:47](N3CCOCC3)=[O:48])[C:28]=2[CH:55]([CH3:57])[CH3:56])=[O:26])[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1.N1(C(N)=O)CCOCC1.Cl>O.C1COCC1.C1(C)C=CC=CC=1>[F:44][C:41]1[CH:40]=[CH:39][C:38]([C:30]2[N:29]([CH2:45][CH2:46][C:47](=[O:48])[CH2:6][C:4](=[O:5])[CH2:3][C:2]([O:8][C:9]([CH3:12])([CH3:11])[CH3:10])=[O:7])[C:28]([CH:55]([CH3:57])[CH3:56])=[C:27]([C:25](=[O:26])[NH:24][C:18]3[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=3)[C:31]=2[C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)=[CH:43][CH:42]=1

Komponenten

10

Edukt 6

HCID 313Hydrochloric AcidHCID 15538Tert-butyl acetoacetateHCID 75088Morpholine-4-carboxamideHCID 5360545SodiumHCID 111919355-(4-fluorophenyl)-2-isopropyl-1-(3-morpholin-4-yl-3-oxo-propyl)-4-phenyl-1H-pyrrole-3-carboxylic acid phenylamideHCID 178418339Butyllithium

Produkt 1

HCID 228947727-[2-(4-Fluorophenyl)-5-isopropyl-3-phenyl-4-phenylcarbamoyl-pyrrol-1-yl]-3,5-dioxo-heptanoic acid, t-butyl esterAusbeute 92,4 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 962WaterLösungsmittelHCID 1140TolueneLösungsmittelHCID 8028TetrahydrofuranLösungsmittel2×

Reaktionsbedingungen

Temperatur
-6 °C

Versuchsvorschrift

A nitrogen inerted reactor is charged with the sodium salt of tert-butyl acetoacetate (100 mmol). Anhydrous toluene (71.5 mL) and THF (8.2 mL, 101 mmol) are added, and the resulting solution is cooled under a positive pressure of nitrogen to ca.−10° C. A 10 M hexanes solution of n-BuLi (104 mmol) is added at such a rate as to maintain an internal reaction temperature of <1° C. The resulting solution is stirred an additional 20 to 30 minutes after complete addition as the temperature is allowed to cool to ca. −6° C. Meanwhile, 5-(4-fluorophenyl)-2-isopropyl-1-(3-morpholin-4-yl-3-oxo-propyl)-4-phenyl-1H-pyrrole-3-carboxylic acid phenylamide (25 mmol) is charged to a second nitrogen inerted reactor. Anhydrous THF (50 mL) is added at room temperature, and the resulting slurry is cooled to ca. −10° C. and stirred for 15 to 90 minutes. The solution of dienolate is added to the slurry of morpholine amide at such a rate as to maintain an internal reaction temperature ca. −5° C. Following this addition, the slurry is stirred at ca. −5° C. for >2 hours. Water (35 mL) is added with vigorous agitation at such a rate as to maintain an internal reaction temperature of <0° C. Concentrated 37% hydrochloric acid (19.0 mL, 229 mmol) is added at such a rate as to maintain an internal reaction temperature of ≦0° C. The two-layered reaction mixture is vacuum distilled, removing >50% of the organic solvents. The distillation is stopped and the lower aqueous layer is discarded. Water (55 mL) is added and the vacuum distillation is continued until a majority of the organic solvents are removed. [Note: It is preferable to drain and replace the aqueous layer before initiating the vacuum distillation.] IPA (100 mL) is added followed by water (100 mL). The mixture is stirred for >6 hours, allowing for solidification of the product. The solid is collected via filtration, and the cake is washed with pre-mixed 1:1 IPA:H2O. The resulting solid is dried in vacuo at 35° C. to provide 7-[2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-phenylcarbamoyl-pyrrol-1-yl]-3,5-dioxo-heptanoic acid, tert-butyl ester (14.1 g) as a white solid. This material is carried on to subsequent steps without further purification, or optionally, it can be re-precipitated from toluene.

Aufarbeitung

  1. temperaturethe resulting solution is cooled under a positive pressure of nitrogen to ca
  2. custom−10° C
  3. temperatureto maintain an internal reaction temperature of <1° C
  4. additionafter complete addition as the temperature
  5. temperaturethe resulting slurry is cooled to ca. −10° C.
  6. stirringstirred for 15 to 90 minutes
  7. temperatureto maintain an internal reaction temperature ca. −5° C
  8. additionthis addition
  9. stirringthe slurry is stirred at ca. −5° C. for >2 hours
  10. temperatureto maintain an internal reaction temperature of <0° C
  11. additionis added at such a rate as
  12. temperatureto maintain an internal reaction temperature of ≦0° C
  13. customThe two-layered reaction mixture
  14. distillationdistilled
  15. customremoving >50% of the organic solvents
  16. distillationThe distillation
  17. additionWater (55 mL) is added
  18. distillationthe vacuum distillation
  19. customare removed
  20. distillationthe vacuum distillation
  21. addition] IPA (100 mL) is added
  22. stirringThe mixture is stirred for >6 hours
  23. filtrationThe solid is collected via filtration
  24. washthe cake is washed
  25. additionwith pre-mixed 1:1 IPA
  26. customThe resulting solid is dried in vacuo at 35° C.

Quellen und Nachweise

ORD-Eintrag
ord-08ac76546d0b4e8ea836a6ae100fba50
Quelldatensatz
uspto-grants-2007_02
Patentnummer
US07183408B2

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