Dichloromethane → (S)-methyl 4-(8-((2,4-dimethoxybenzyl)amino)-3-(2-thioxopiperidin-3-yl)imidazo[1,5-a]pyrazin-1-yl)benzoate

HRID 62467Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 62467
[CH3:1][O:2][C:3]1[CH:36]=[C:35]([O:37][CH3:38])[CH:34]=[CH:33][C:4]=1[CH2:5][NH:6][C:7]1[C:8]2[N:9]([C:13]([C@@H:26]3[CH2:31][CH2:30][CH2:29][NH:28][C:27]3=O)=[N:14][C:15]=2[C:16]2[CH:25]=[CH:24][C:19]([C:20]([O:22][CH3:23])=[O:21])=[CH:18][CH:17]=2)[CH:10]=[CH:11][N:12]=1.COC1C=CC(P2(SP(C3C=CC(OC)=CC=3)(=S)S2)=[S:48])=CC=1.C(Cl)Cl.C1COCC1>C1(C)C=CC=CC=1>[CH3:1][O:2][C:3]1[CH:36]=[C:35]([O:37][CH3:38])[CH:34]=[CH:33][C:4]=1[CH2:5][NH:6][C:7]1[C:8]2[N:9]([C:13]([C@@H:26]3[CH2:31][CH2:30][CH2:29][NH:28][C:27]3=[S:48])=[N:14][C:15]=2[C:16]2[CH:25]=[CH:24][C:19]([C:20]([O:22][CH3:23])=[O:21])=[CH:18][CH:17]=2)[CH:10]=[CH:11][N:12]=1

Komponenten

6

Edukt 4

HCID 6344DichloromethaneHCID 8028TetrahydrofuranHCID 87949Lawesson's reagentHCID 118559029(S)-methyl 4-(8-((2,4-dimethoxybenzyl)amino)-3-(2-oxopiperidin-3-yl)imidazo[1,5-a]pyrazin-1-yl)benzoate

Produkt 1

HCID 90303997(S)-methyl 4-(8-((2,4-dimethoxybenzyl)amino)-3-(2-thioxopiperidin-3-yl)imidazo[1,5-a]pyrazin-1-yl)benzoateAusbeute 62 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1140TolueneLösungsmittel

Versuchsvorschrift

To a solution of (S)-methyl 4-(8-((2,4-dimethoxybenzyl)amino)-3-(2-oxopiperidin-3-yl)imidazo[1,5-a]pyrazin-1-yl)benzoate (940 mg, 1.82 mmol) in toluene (25 mL) was added Lawesson's reagent (1.5 g, 3.65 mmol). The mixture was heated to reflux overnight. The solvent was evaporated and the residue was purified by column chromatography on silica gel eluted with EA:DCM:THF=1:2:1 to give (S)-methyl 4-(8-((2,4-dimethoxybenzyl)amino)-3-(2-thioxopiperidin-3-yl)imidazo[1,5-a]pyrazin-1-yl)benzoate (600 mg, yield 62%).

Aufarbeitung

  1. temperatureThe mixture was heated
  2. temperatureto reflux overnight
  3. customThe solvent was evaporated
  4. customthe residue was purified by column chromatography on silica gel
  5. washeluted with EA

Quellen und Nachweise

ORD-Eintrag
ord-7e67814f6b4845a4b67797181e357033
Quelldatensatz
uspto-grants-2016_09
Patentnummer
US09446130B2

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