Sodium triacetoxyborohydride → 1-{1-[4-(6-phenyl-pyrazolo[1,5-a]pyrimidin-5-yl)-benzyl]-piperidin-4-yl}-1H-pyrazolo[3,4-d]pyrimidin-4-ylamine

HRID 1851271Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1851271
[C:1]1([C:7]2[C:8]([C:16]3[CH:23]=[CH:22][C:19]([CH:20]=O)=[CH:18][CH:17]=3)=[N:9][C:10]3[N:11]([N:13]=[CH:14][CH:15]=3)[CH:12]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[NH:24]1[CH2:29][CH2:28][CH:27]([N:30]2[C:34]3=[N:35][CH:36]=[N:37][C:38]([NH2:39])=[C:33]3[CH:32]=[N:31]2)[CH2:26][CH2:25]1.[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+]>>[C:1]1([C:7]2[C:8]([C:16]3[CH:23]=[CH:22][C:19]([CH2:20][N:24]4[CH2:29][CH2:28][CH:27]([N:30]5[C:34]6=[N:35][CH:36]=[N:37][C:38]([NH2:39])=[C:33]6[CH:32]=[N:31]5)[CH2:26][CH2:25]4)=[CH:18][CH:17]=3)=[N:9][C:10]3[N:11]([N:13]=[CH:14][CH:15]=3)[CH:12]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1

Komponenten

4

Edukt 3

HCID 5049666Sodium triacetoxyborohydride2×HCID 577139461-piperidin-4-yl-1H-pyrazolo[3,4-d]pyrimidin-4-amine2×HCID 866306654-(6-Phenylpyrazolo[1,5-a]pyrimidin-5-yl)benzaldehyde

Produkt 1

HCID 687527071-{1-[4-(6-phenyl-pyrazolo[1,5-a]pyrimidin-5-yl)-benzyl]-piperidin-4-yl}-1H-pyrazolo[3,4-d]pyrimidin-4-ylamineAusbeute 25,6 %

Versuchsvorschrift

250 mg (0.84 mmol) 4-(6-phenylpyrazolo[1,5-a]pyrimidin-5-yl)benzaldehyde and 257 mg (1 mmol) 1-piperidine-4-yl-1H-pyrazolo[3,4-d]pyrimidin-4-ylamine were treated as previously described. Additional NaBH(OAc)3 has been added after one, two and three hours (two equivalents each). After a further stirring at room temperature additional 26 mg 1-piperidine-4-yl-1H-pyrazolo[3,4-d]pyrimidin-4-ylamine and two equivalents NaBH(OAc)3 were added. After stirring overnight and two further additions of NaBH(OAc)3 the solvents were evaporated. Workup und purification yields 108 mg of the desired compound.

Aufarbeitung

  1. additionwere added
  2. customtwo further additions of NaBH(OAc)3 the solvents were evaporated
  3. custompurification

Quellen und Nachweise

ORD-Eintrag
ord-16bac07ea44847c2bedcfcadcc192982
Quelldatensatz
uspto-grants-2015_02
Patentnummer
US08957064B2

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