HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium Hydroxide → Regadenoson Impurity 1
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | Ethyl 1-(6-amino-9-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-9H-purin-2-yl)-1H-pyrazole-4-carboxylate | HCID 9865974 | — |
| Product | Regadenoson Impurity 1 | HCID 9864495 | — |
Reaction Steps
Compound 12 (0.05 mg, 0.12 mmol) was dissolved one equivalent of 1N NaOH. The solution was allowed to stir at Rt for 2 h, then acidified to pH 4. The resulting precipitate was filtered and washed with water and ether. 1HNMR (CD3OD) δ 3.75 (m, 1 H), 3.90 (m, 1 H), 4.13 (d, 1 H), 4.43 (d, 1 H), 4.64 (m, 1 H), 6.05 (d, 1 H), 8.10 (s, 1 H), 8.35 (s, 1 H), 9.05 (s, 1 H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09045519B2 |
| Source dataset | uspto-grants-2015_06 |
| ORD ID | ord-264d8f982b974933ae76aa30406ac7d5 |
| Source note | uspto-grants-2015_06 |