HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2234668Generated: October 30, 2026
Hydrochloric Acid → 5-bromo-3-(2-ethyl-2H-pyrazol-3-yl)-1H-pyrrolo[2,3-b]pyridine
https://huagongshe.com/reaction/2234668
Participants
| Role | Name | HCID | Charge |
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| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 5-bromo-3-[1-(2-ethyl-2H-pyrazol-3-yl)-2-methoxy-vinyl]-pyridin-2-ylamine | HCID 68691856 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | 5-bromo-3-(2-ethyl-2H-pyrazol-3-yl)-1H-pyrrolo[2,3-b]pyridine | HCID 135962021 | 59.1% |
Reaction Steps
5-Bromo-3-[1-(2-ethyl-2H-pyrazol-3-yl)-2-methoxy-vinyl]-pyridin-2-ylamine (602 mg, 1.86 mmol), ethyl alcohol (30 ml), and concentration hydrochloric acid (30 ml) were combined and stirred at 100° C. for 18 hours. The reaction was quenched with sodium bicarbonate solution and the product was filtered off. The filtered product was dried under high vacuum to give 320 mg (59%) of 5-bromo-3-(2-ethyl-2H-pyrazol-3-yl)-1H-pyrrolo[2,3-b]pyridine. MS: m/z 291.3+293.3 (M+H+).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07709645B2 |
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| Source dataset | uspto-grants-2010_05 |
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| ORD ID | ord-37ccabf124d047b9a6be206184050a1c |
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| Source note | uspto-grants-2010_05 |
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