Triethylamine → tert-Butyl (6S,9R)-6-(2,3-difluorophenyl)-3-(2,2,2-trifluoroethyl)-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-9-ylcarbamate

HRID 1664865

Reaktionsgleichung

Reaktionsgleichung von HRID 1664865
C(N(CC)CC)C.[F:8][C:9]1[C:14]([F:15])=[CH:13][CH:12]=[CH:11][C:10]=1[C@H:16]1[CH2:22][NH:21][C:20](=[N:23][NH2:24])[C@H:19]([NH:25][C:26](=[O:32])[O:27][C:28]([CH3:31])([CH3:30])[CH3:29])[CH2:18][CH2:17]1.[F:33][C:34]([F:40])([F:39])[CH2:35][C:36](O)=O.ON1C2N=CC=CC=2N=N1.C(=O)(O)[O-].[Na+]>ClCCl>[F:8][C:9]1[C:14]([F:15])=[CH:13][CH:12]=[CH:11][C:10]=1[C@H:16]1[CH2:22][N:21]2[C:36]([CH2:35][C:34]([F:40])([F:39])[F:33])=[N:24][N:23]=[C:20]2[C@H:19]([NH:25][C:26](=[O:32])[O:27][C:28]([CH3:29])([CH3:31])[CH3:30])[CH2:18][CH2:17]1

Komponenten

7

Edukt 5

HCID 8471TriethylamineHCID 181649HOAtHCID 516892Sodium BicarbonateHCID 27779723,3,3-Trifluoropropionic acidHCID 178453872HCID 178453872, Verbindung

Produkt 1

HCID 59734931tert-Butyl (6S,9R)-6-(2,3-difluorophenyl)-3-(2,2,2-trifluoroethyl)-6,7,8,9-tetrahydro-5H-[1,2,4]triazolo[4,3-a]azepin-9-ylcarbamateAusbeute 89,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

Triethylamine (0.259 mL, 1.86 mmol) was added to a solution of tert-butyl (3R,6S)-6-(2,3-difluorophenyl)-2-hydrazonoazepan-3-ylcarbamate (548 mg, 1.55 mmol), 3,3,3-trifluoropropionic acid (0.205 mL, 2.32 mmol), 1-(3-dimethylaminopropyl)-3-ethylcarbodimmide hydrochloride (356 mg, 1.86 mmol), and 1-hydroxy-7-azabenzotriazole (253 mg, 1.86 mmol) in dichloromethane (55 mL). After 18 h, saturated aqueous sodium bicarbonate was added and the mixture was extracted with dichloromethane (3×). The combined organic extracts were dried over sodium sulfate, filtered, and concentrated. Purification by silica gel chromatography (100% dichloromethane→96% dichloromethane/methanol) gave the title compound (618 mg). MS 447.1 (M+1).

Aufarbeitung

  1. extractionthe mixture was extracted with dichloromethane (3×)
  2. dry with materialThe combined organic extracts were dried over sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customPurification by silica gel chromatography (100% dichloromethane→96% dichloromethane/methanol)

Quellen und Nachweise

ORD-Eintrag
ord-e028b1c585d94be2934a25f32597f6a4
Quelldatensatz
uspto-grants-2011_10
Patentnummer
US08039460B2

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