Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 490899Generated: October 26, 2026

Sodium Hydroxide → HCID 57675146, compound

https://huagongshe.com/reaction/490899

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantEthyl 1-ethyl-4-[methyl(tetrahydro-2H-pyran-4-yl)amino]-1H-pyrazolo[3,4-b]pyridine-5-carboxylateHCID 44561082—
SolventEthanolHCID 702—
ProductHCID 57675146HCID 57675146—

Reaction Conditions

Temperature50 °C

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07528148B2
Source datasetuspto-grants-2009_05
ORD IDord-0d8a73ae84d1417992126827824f5ef2
Source noteuspto-grants-2009_05