1H-Pyrazolo[3,4-d]pyrimidin-4-amine → HCID 178508725, compound

HRID 920197Notes

Reaction equation

HRID 920197 reaction equation
[NH:1]1[C:5]2=[N:6][CH:7]=[N:8][C:9]([NH2:10])=[C:4]2[CH:3]=[N:2]1.[I:11]NC(=O)CCC(N)=O>>[I:11][C:3]1[C:4]2[C:5](=[N:6][CH:7]=[N:8][C:9]=2[NH2:10])[NH:1][N:2]=1

Participants

3

Reactant 2

HCID 754201H-Pyrazolo[3,4-d]pyrimidin-4-amineHCID 21864724N-Iodosuccinamide

Product 1

HCID 178508725HCID 178508725, compound

Procedure

Halogenation of commercially available 1H-pyrazolo[3,4-d]pyrimidin-4-amine provides an entry into the synthesis of compounds of Formula (I). In one embodiment, 1H-pyrazolo[3,4-d]pyrimidin-4-amine is treated with N-iodosuccinamide to give 3-iodo-1H-pyrazolo[3,4-d]pyrimidin-4-amine. Metal catalyzed cross coupling reactions are then carried out on 3-iodo-1H-pyrazolo[3,4-d]pyrimidin-4-amine. In one embodiment, palladium mediated cross-coupling of a suitably substituted phenyl boronic acid under basic conditions constructs intermediate A. Intermediate A is coupled via Mitsunobu reaction which undergoes further chemical modification to arrive at compound B.

Sources & evidence

ORD record
ord-2d43561af2e94214a7bcca9e1c0c38ae
Source dataset
uspto-grants-2016_03
Patent number
US09273051B2

Reaction notes

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