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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1062510Generated: October 26, 2026

Ibacitabine → 4-amino-1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-(2-pyridyl)pyrimidin-2-one

https://huagongshe.com/reaction/1062510

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIbacitabineHCID 65050—
ReactantPyridine, 2-(trimethylstannyl)-HCID 11021057—
CatalystDichlorobis(triphenylphosphine)palladiumHCID 6102075—
Solvent1,4-DioxaneHCID 31275—
Product4-amino-1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-(2-pyridyl)pyrimidin-2-oneHCID 527420047.4%

Reaction Conditions

Temperature60 °C

Reaction Steps

In a 25 mL pear shaped flask was placed 5-iodo-2′-deoxycytidine (0.425 g, 1.2 mmol), 2-trimethylstannylpyridine (1.4 g, 5.8 mmol), Bis (triphenylphosphine)-palladium (II) chloride (0.084 g, 0.12 mmol), and anhydrous 1,4-dioxane (15 mL). The reaction was heated at 60° C. for 15 hrs then at 90° C. for 1 h. The solvent was evaporated and the residue purified by silica gel chromatography (10% CH3OH in CH2Cl2 (1% NH3)) to yield 0.173 g (47%) of the title compound as a white solid m.p. 197-198° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06962783B2
Source datasetuspto-grants-2005_11
ORD IDord-15ac4c73d16d436dbf1b301769d96d1e
Source noteuspto-grants-2005_11