HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 455150Generated: November 2, 2026
HCID 67028741, compound → HCID 67029115, compound
https://huagongshe.com/reaction/455150
Participants
| Role | Name | HCID | Charge |
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| Reactant | HCID 67028741 | HCID 67028741 | — |
| Catalyst | Hydrochloric Acid | HCID 313 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Solvent | N,N-Dimethylethylenediamine | HCID 66053 | — |
| Product | HCID 67029115 | HCID 67029115 | — |
Reaction Steps
To a mixture of 100 mg of 1-((2-(4-chlorophenyl)imidazo[1,2-a]pyridin-3-yl)methyl)-4-methoxy-1H-pyrrol-2(5H)-one (0.251 mmol, 1 eq) in 1 mL of N,N-dimethylethane-1,2-diamine in a sealed tube, one drop of HCl was added. The solution was heated at 140° C., O/N. The mixture was then diluted with EtOAc, washed with an excess of NaHCO3 (aq, sat), dried on MgSO4, filtered and concentrated. The crude was purified on silica gel chromatography (MeOH:NH4OH (95:5)/EtOAc, 0 to 15%). The product was then washed with ether to give a white solid. (37 mg, 32%) m/e+=410 (M+H+). 1H-NMR (400 MHz, CDCl3, δ): 8.51 (d, 1H, D, J=6.6 Hz), 7.72 (d, 2H, D, J=8.6 Hz), 7.61 (d, 1H, D, J=9.2 Hz), 7.45 (d, 2H, D, J=8.4 Hz), 7.24 (t, 1H, D, J=8.8 Hz), 6.85 (t, 1H, D, J=6.4 Hz), 5.06 (s, 2H), 4.89 (m, 1H), 4.67 (s, 1H), 3.56 (s, 2H), 2.99 (m, 2H), 2.42 (m, 2H), 2.15 (s, 6H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08497278B2 |
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| Source dataset | uspto-grants-2013_07 |
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| ORD ID | ord-b57e7d4f1d4747a397c1c10a15b7c54e |
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| Source note | uspto-grants-2013_07 |
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