HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2092061Generated: November 2, 2026
Potassium Carbonate → HCID 68432192, compound
https://huagongshe.com/reaction/2092061
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | Ammonium Chloride | HCID 25517 | — |
| Reactant | Ethyl 4-bromobutyrate | HCID 76300 | — |
| Reactant | HCID 68429305 | HCID 68429305 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 68432192 | HCID 68432192 | 149.8% |
Reaction Steps
4-Bromo-5-[(1R,2R,3R,5S)-2,6,6-trimethylbicyclo[3.1.1]hept-3-ylamino]pyridazin-3(2H)-one (224 mg, 0.688 mmol) in N,N-dimethylformamide (2.2 mL) was mixed with ethyl 4-bromobutyrate (0.148 mL, 1.03 mmol) and potassium carbonate (142 mg, 1.03 mmol) at room temperature and stirred at 80° C. for 2 hours. After cooling, the reaction solution was mixed with saturated aqueous ammonium chloride and extracted with ethyl acetate. The resulting organic layer was washed with saturated aqueous ammonium chloride and saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate and evaporated under reduced pressure to give the desired product (454 mg, quant.).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08440666B2 |
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| Source dataset | uspto-grants-2013_05 |
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| ORD ID | ord-c3c89577a2354282aabbe01353806130 |
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| Source note | uspto-grants-2013_05 |
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