3,5-Bis(trifluoromethyl)benzoic acid → tert-butyl (3R*,4R*)-4-({[3,5-bis(trifluoromethyl)phenyl]carbonyl}amino)-3-(3,4-dichlorophenyl)piperidine-1-carboxylate

HRID 1260907Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1260907
C1(C)C=CC(S(O)(=O)=O)=CC=1.[NH2:12][C@@H:13]1[CH2:18][CH2:17][N:16]([C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])[CH2:15][C@H:14]1[C:26]1[CH:31]=[CH:30][C:29]([Cl:32])=[C:28]([Cl:33])[CH:27]=1.[F:34][C:35]([F:50])([F:49])[C:36]1[CH:37]=[C:38]([CH:42]=[C:43]([C:45]([F:48])([F:47])[F:46])[CH:44]=1)[C:39](O)=[O:40].CCN=C=NCCCN(C)C.Cl.C1C=CC2N(O)N=NC=2C=1>C(#N)C.O.CCN(CC)CC>[F:34][C:35]([F:49])([F:50])[C:36]1[CH:37]=[C:38]([C:39]([NH:12][C@@H:13]2[CH2:18][CH2:17][N:16]([C:19]([O:21][C:22]([CH3:25])([CH3:23])[CH3:24])=[O:20])[CH2:15][C@H:14]2[C:26]2[CH:31]=[CH:30][C:29]([Cl:32])=[C:28]([Cl:33])[CH:27]=2)=[O:40])[CH:42]=[C:43]([C:45]([F:46])([F:47])[F:48])[CH:44]=1

Komponenten

8

Edukt 4

HCID 128893,5-Bis(trifluoromethyl)benzoic acidHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 86631277HCID 86631277, Verbindung

Produkt 1

HCID 57741647tert-butyl (3R*,4R*)-4-({[3,5-bis(trifluoromethyl)phenyl]carbonyl}amino)-3-(3,4-dichlorophenyl)piperidine-1-carboxylateAusbeute 98,6 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 962WaterLösungsmittelHCID 6342AcetonitrileLösungsmittelHCID 8471TriethylamineLösungsmittel

Versuchsvorschrift

To a solution of the compound (1.48 g) obtained in step 4, 3,5-bis(trifluoromethyl)benzoic acid (1.10 g) and Et3N (0.40 mL) in acetonitrile (15 mL) were added WSC.HCl (1.10 g) and HOBt (0.88 g), and the mixture was stirred at room temperature for 14 hr. The reaction mixture was poured into water, and the resultant product was extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium hydrogen carbonate solution and brine and dried, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (solvent gradient; 10→33% ethyl acetate/hexane) to give the title compound (1.65 g, 98%) as a white powder.

Aufarbeitung

  1. extractionthe resultant product was extracted with ethyl acetate
  2. washThe organic layer was washed with saturated aqueous sodium hydrogen carbonate solution and brine
  3. customdried
  4. customthe solvent was evaporated under reduced pressure
  5. customThe obtained residue was purified by silica gel column chromatography (solvent gradient; 10→33% ethyl acetate/hexane)

Quellen und Nachweise

ORD-Eintrag
ord-86dc5dc0c0f74da4b8ce398b6697fdc7
Quelldatensatz
uspto-grants-2013_06
Patentnummer
US08470816B2

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