HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2037037Generated: October 29, 2026
Potassium Carbonate → HCID 58314118, compound
https://huagongshe.com/reaction/2037037
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 2-(Piperazin-1-yl)pyridine-3-carbonitrile | HCID 2737203 | — |
| Reactant | 5-Chloro-7-(cyclopropylamino)pyrazolo[1,5-a]pyrimidine-3-carbaldehyde | HCID 58196647 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 58314118 | HCID 58314118 | 35% |
Reaction Steps
In a reaction flask, 2-(piperazin-1-yl)nicotinonitrile (22 mg, 0.11 mmol) was mixed with 5-chloro-7-(cyclopropylamino)pyrazolo[1,5-a]pyrimidine-3-carbaldehyde (27 mg, 0.11 mmol) in DMF (0.5 mL) along with potassium carbonate (32 mg, 0.23 mmol). The reaction was heated at 95° C. for 12 hours then partitioned between water and ethyl acetate. The organic layer was washed with water then saturated NaCl solution. The ethyl acetate layer was isolated, dried of anhydrous sodium sulfate, filtered, and evaporated to dryness. The product, 2-(4-(7-(cyclopropylamino)-3-formylpyrazolo[1,5-a]pyrimidin-5-yl)piperazin-1-yl)nicotinonitrile, was recovered in 35% yield (16 mg) after recrystallization from ethyl acetate/hexanes. LCMS (M+1=389)
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08575177B2 |
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| Source dataset | uspto-grants-2013_11 |
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| ORD ID | ord-faf838492e2f4e8b8086341f50d5b9c3 |
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| Source note | uspto-grants-2013_11 |
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