HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2209216Generated: November 1, 2026
HCID 117843199, compound → (R)-4-((R)-1-((6-chloro-3-methylpyrazolo[1,5-a]pyrazin-4-yl)oxy)ethyl)pyrrolidin-2-one
https://huagongshe.com/reaction/2209216
Participants
| Role | Name | HCID | Charge |
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| Reactant | HCID 117843199 | HCID 117843199 | — |
| Solvent | Trifluoroacetic acid | HCID 6422 | — |
| Product | (R)-4-((R)-1-((6-chloro-3-methylpyrazolo[1,5-a]pyrazin-4-yl)oxy)ethyl)pyrrolidin-2-one | HCID 117843177 | 101.8% |
Reaction Steps
(R)-4-((R)-1-(6-chloro-3-methylpyrazolo[1,5-a]pyrazin-4-yloxy)ethyl)-1-((R)-1-(4-methoxyphenyl)ethyl)pyrrolidin-2-one 5.53 (31 mg, 0.07 mmol) was dissolved in 1.5 mL of TFA and mixture was heated at 60° C. After 17 hours, reaction mixture was cooled to rt and concentrated under reduced pressure. Resulting residue was taken up in ethyl acetate and washed with sat NaHCO3 (aq). Layers were separated and aqueous was extracted with ethyl acetate. Combined organics were washed with 1:1 sat. NaHCO3 (aq)/brine, dried, filtered, and concentrated under reduced pressure to yield (R)-4-((R)-1-((6-chloro-3-methylpyrazolo[1,5-a]pyrazin-4-yl)oxy)ethyl)pyrrolidin-2-one 5.54 (21 mg), which was used without further purification.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09376441B2 |
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| Source dataset | uspto-grants-2016_06 |
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| ORD ID | ord-886c2693e3bf44af950702976df438f6 |
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| Source note | uspto-grants-2016_06 |
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