HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1506995Generated: October 31, 2026
N-methyl-2-pyrrolidone → HCID 117739052, compound
https://huagongshe.com/reaction/1506995
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | N-methyl-2-pyrrolidone | HCID 13387 | — |
| Reactant | HCID 117739235 | HCID 117739235 | — |
| Catalyst | Zinc cyanide (Zn(CN)2) | HCID 11186 | — |
| Catalyst | HCID 178418397 | HCID 178418397 | — |
| Product | HCID 117739052 | HCID 117739052 | 87% |
Reaction Steps
To a solution of (S)-tert-butyl 1-(5-bromo-4-oxo-3-(pyridin-3-yl)-3,4-dihydroquinazolin-2-yl)ethylcarbamate (255 mg, 0.58 mmol) in NMP (2 mL) was added zinc cyanide (74 mg, 0.63 mmol) and (PPh3)4Pd (66 mg, 0.06 mmol). The resulting suspension was degassed under Argon and heated to 80° C. for 5 hours. The reaction was poured into EtOAc, washed twice with aq. NaHCO3 and once with brine. Purification by flash chromatography (0-75% EtOAc/hexanes) provided (S)-tert-butyl 1-(5-cyano-4-oxo-3-(pyridin-3-yl)-3,4-dihydroquinazolin-2-yl)ethylcarbamate 196 mg (87%). ES/MS 392.1 (M+H+).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09221795B2 |
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| Source dataset | uspto-grants-2015_12 |
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| ORD ID | ord-61453700ff39448d8394ff23ba73ab6d |
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| Source note | uspto-grants-2015_12 |
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