Triethylamine → (S)-2-(4-(5-(4-isopropyl-2-oxooxazolidin-3-yl)pyrazolo[1,5-a]pyrimidin-3-yl)benzoyl)hydrazinecarbothioamide

HRID 539001Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 539001
CCN=C=NCCCN(C)C.[CH:12]([C@H:15]1[CH2:19][O:18][C:17](=[O:20])[N:16]1[C:21]1[CH:26]=[CH:25][N:24]2[N:27]=[CH:28][C:29]([C:30]3[CH:38]=[CH:37][C:33]([C:34](O)=[O:35])=[CH:32][CH:31]=3)=[C:23]2[N:22]=1)([CH3:14])[CH3:13].C1C=CC2N(O)N=NC=2C=1.O.[NH:50]([C:52](=[S:54])[NH2:53])[NH2:51].C(N(CC)CC)C>CN(C=O)C.CCOC(C)=O>[CH:12]([C@H:15]1[CH2:19][O:18][C:17](=[O:20])[N:16]1[C:21]1[CH:26]=[CH:25][N:24]2[N:27]=[CH:28][C:29]([C:30]3[CH:31]=[CH:32][C:33]([C:34]([NH:51][NH:50][C:52](=[S:54])[NH2:53])=[O:35])=[CH:37][CH:38]=3)=[C:23]2[N:22]=1)([CH3:13])[CH3:14]

Komponenten

8

Edukt 5

HCID 8471TriethylamineHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 2723789ThiosemicarbazideHCID 27960291-Hydroxybenzotriazole hydrateHCID 67034480(S)-4-(5-(4-isopropyl-2-oxooxazolidin-3-yl)pyrazolo[1,5-a]pyrimidin-3-yl)benzoic acid

Produkt 1

HCID 86667822(S)-2-(4-(5-(4-isopropyl-2-oxooxazolidin-3-yl)pyrazolo[1,5-a]pyrimidin-3-yl)benzoyl)hydrazinecarbothioamideAusbeute 33,8 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6228DimethylformamideLösungsmittel2×HCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

EDCI (157 mg, 0.819 mmol) was added to a mixture of (S)-4-(5-(4-isopropyl-2-oxooxazolidin-3-yl)pyrazolo[1,5-a]pyrimidin-3-yl)benzoic acid (Example 9, Step 1; 50 mg, 0.136 mmol) and HOBT-H2O (62.7 mg, 0.409 mmol) in DMF (2 mL) at ambient temperature, and the reaction mixture was stirred for 20 minutes at ambient temperature. 1.0 mL of hydrazinecarbothioamide (12.4 mg, 0.136 mmol) in DMF and triethylamine (95 μL, 0.682 mmol) were added. The resulting mixture was stirred for 1 hour at ambient temperature. The reaction mixture was diluted with EtOAc, washed with aqueous NH4Cl, NaHCO3, and brine, dried over MgSO4, and concentrated under reduced pressure. The crude material was purified by silica gel flash column chromatography (0-5% MeOH in dichloromethane) to afford 20.2 mg (21%) of (S)-2-(4-(5-(4-isopropyl-2-oxooxazolidin-3-yl)pyrazolo[1,5-a]pyrimidin-3-yl)benzoyl)hydrazinecarbothioamide. LCMS (APCI−) m/z 438.4 [M−H]+.

Aufarbeitung

  1. stirringThe resulting mixture was stirred for 1 hour at ambient temperature
  2. washwashed with aqueous NH4Cl, NaHCO3, and brine
  3. dry with materialdried over MgSO4
  4. concentrationconcentrated under reduced pressure
  5. customThe crude material was purified by silica gel flash column chromatography (0-5% MeOH in dichloromethane)

Quellen und Nachweise

ORD-Eintrag
ord-918dba0c01564fd0b80afe279743fcd7
Quelldatensatz
uspto-grants-2014_10
Patentnummer
US08865726B2

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