Hydrochloric Acid → 5-(azidomethyl)-1,6-diethyl-N-4-piperidinyl-1H-pyrazolo[3,4-b]pyridin-4-amine, hydrochloride salt

HRID 1675665Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1675665
[N:1]([CH2:4][C:5]1[C:6]([NH:18][CH:19]2[CH2:24][CH2:23][N:22](C(OC(C)(C)C)=O)[CH2:21][CH2:20]2)=[C:7]2[CH:15]=[N:14][N:13]([CH2:16][CH3:17])[C:8]2=[N:9][C:10]=1[CH2:11][CH3:12])=[N+:2]=[N-:3].[ClH:32]>O1CCOCC1>[ClH:32].[N:1]([CH2:4][C:5]1[C:10]([CH2:11][CH3:12])=[N:9][C:8]2[N:13]([CH2:16][CH3:17])[N:14]=[CH:15][C:7]=2[C:6]=1[NH:18][CH:19]1[CH2:20][CH2:21][NH:22][CH2:23][CH2:24]1)=[N+:2]=[N-:3]

Komponenten

4

Versuchsvorschrift

1,1-dimethylethyl 4-{[5-(azidomethyl)-1,6-diethyl-1H-pyrazolo[3,4-b]pyridin-4-yl]amino}-1-piperidinecarboxylate (5.14 g) is treated with a 4M solution of hydrogen chloride in dioxane (50 ml). The reaction mixture is left to stand for 2 hours. The solvent is evaporated and co-evaporated with dichloromethane (2×50 ml) then diethyl ether (2×50 ml) to give 5-(azidomethyl)-1,6-diethyl-N-4-piperidinyl-1H-pyrazolo[3,4-b]pyridin-4-amine, hydrochloride salt. This product is dissolved in dichloromethane (100 ml) and the solution is treated with DIPEA (6.3 ml) and trimethylsilyl isocyanate (1.8 ml), and then is left to stand at room temperature for 18 hours. Water (50 ml) is added and the precipitated solid is collected by filtration, washed with diethyl ether and dried to give 4-{[5-(azidomethyl)-1,6-diethyl-1H-pyrazolo[3,4-b]pyridin-4-yl]amino}-1-piperidinecarboxamide.

Aufarbeitung

  1. waitThe reaction mixture is left
  2. customThe solvent is evaporated

Quellen und Nachweise

ORD-Eintrag
ord-c31b070d4f104ca5bdc5b15261078b15
Quelldatensatz
uspto-grants-2011_08
Patentnummer
US08003663B2

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