HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 490899Generated: October 26, 2026
Sodium Hydroxide → HCID 57675146, compound
https://huagongshe.com/reaction/490899
Participants
| Role | Name | HCID | Charge |
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| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | Ethyl 1-ethyl-4-[methyl(tetrahydro-2H-pyran-4-yl)amino]-1H-pyrazolo[3,4-b]pyridine-5-carboxylate | HCID 44561082 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 57675146 | HCID 57675146 | — |
Reaction Steps
Sodium hydroxide (0.43 g, 10.8 mmol) was added to a solution of Intermediate 51 in ethanol (10 ml, 95%). The reaction mixture was heated at 50° C. for 18 hours. The solvent was evaporated in vacuo and the residue dissolved in water and acidified to pH 3 by the addition of aqueous hydrochloric acid. The solution was extracted with DCM. The organic phase was separated using a hydrophobic frit (Whatman PTFE Folter Media with Polypropylene Housing 5 μM pore size) and the solvent evaporated in vacuo to give Intermediate 52 as a white solid (0.65 g). LCMS showed MH+=305; TRET=1.97 min.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07528148B2 |
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| Source dataset | uspto-grants-2009_05 |
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| ORD ID | ord-0d8a73ae84d1417992126827824f5ef2 |
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| Source note | uspto-grants-2009_05 |
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