HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 408213Generated: October 28, 2026
Dichloromethane → HCID 67045285, compound
https://huagongshe.com/reaction/408213
Participants
| Role | Name | HCID | Charge |
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| Reactant | Dichloromethane | HCID 6344 | — |
| Reactant | Trifluoroacetic acid | HCID 6422 | — |
| Reactant | HCID 67045070 | HCID 67045070 | — |
| Product | HCID 67045285 | HCID 67045285 | 33% |
Reaction Steps
(R)-tert-Butyl 1-(5-bromo-3-(pyrazine-2-carboxamido)-1H-pyrrolo[2,3-b]pyridin-4-yl)piperidin-3-ylcarbamate (0.060 g, 0.12 mmol) was placed in DCM (3 mL) at room temperature. TFA (1 mL) was then added, and the reaction was stirred at room temperature for 1 hour and then concentrated to dryness. The resulting residue was purified by reverse phase HPLC (0 to 50% ACN in water, Gilson system). The resulting product was then dissolved in minimal DCM (with MeOH to aid solubility) and added to a stirring solution of 1M HCl in ether. The resulting solid was filtered, washed with ether and dried to give (R)—N-(4-(3-aminopiperidin-1-yl)-5-bromo-1H-pyrrolo[2,3-b]pyridin-3-yl)pyrazine-2-carboxamide hydrochloride (0.019 g, 33% yield). 1H NMR (400 MHz, D2O) δ 8.69 (s, 1H), 8.57-8.56 (m, 1H), 8.50 (s, 1H), 8.04 (s, 1H), 7.60 (s, 1H), 3.70-3.62 (m, 1H), 3.55-3.50 (m, 1H), 3.42-3.39 (m, 1H), 3.31-3.29 (m, 1H), 2.83-2.80 (m, 1H), 2.19-2.16 (m, 1H), 1.92-1.89 (m, 1H), 1.73-1.69 (m, 1H), 1.49-1.47 (m, 1H); LCMS (APCI+) m/z 416, 418 (M+H)+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08758830B2 |
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| Source dataset | uspto-grants-2014_06 |
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| ORD ID | ord-2243a176dd5d40d5991b6c92ba9edcc4 |
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| Source note | uspto-grants-2014_06 |
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