HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1923945Generated: October 29, 2026
Cyclopentanecarbonyl chloride → N-(5-chloro-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)cyclopentanecarboxamide
https://huagongshe.com/reaction/1923945
Participants
| Role | Name | HCID | Charge |
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| Reactant | Cyclopentanecarbonyl chloride | HCID 78284 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | 5-chloro-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amine | HCID 58195565 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | N-(5-chloro-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)cyclopentanecarboxamide | HCID 60205684 | 61.1% |
Reaction Steps
N-Ethyl-N-isopropylpropan-2-amine (279 mg, 2.16 mmol) followed by cyclopentanecarbonyl chloride (143 mg, 1.08 mmol) were added dropwise to 5-chloro-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amine (200 mg, 1.08 mmol) in THF (10 mL) at 0° C. The reaction mixture was stirred at 0° C. for 1 hour and then concentrated to dryness. The residue was triturated in water and then filtered. The solid was washed with ACN and dried under vacuum to provide N-(5-chloro-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)cyclopentanecarboxamide (186 mg, 61% yield) as a solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08178131B2 |
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| Source dataset | uspto-grants-2012_05 |
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| ORD ID | ord-50fce399e98d417a8ea8fff41f9d9d56 |
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| Source note | uspto-grants-2012_05 |
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