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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1474607Generated: October 28, 2026

Pyridine → HCID 89442811, compound

https://huagongshe.com/reaction/1474607

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantSodium AcetateHCID 517045—
ReactantO-Methylhydroxylamine hydrochlorideHCID 521874—
ReactantHCID 89442768HCID 89442768—
SolventEthanolHCID 702—
ProductHCID 89442811HCID 8944281164.5%

Reaction Steps

To a solution of (2R,3R,4R,5S,6S)-2-(acetoxymethyl)-6-(4-chloro-3-(4-(2-oxoethoxy)benzyl)phenyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate (145 mg, 0.25 mmol), in ethanol (10 mL) under nitrogen atmosphere, were added pyridine (0.099 mL, 1.28 mmol), sodium acetate (201.3 mg, 2.45 mmol) and O-methylhydroxylamine hydrochloride (102 mg, 1.22 mmol). The reaction mixture was refluxed for 5 h. After completion of the reaction as confirmed by TLC, the solvent was evaporated. The crude compound was extracted with ethyl acetate (50 mL). The organic layer was separated, washed with water (2×10 mL), dried over Na2SO4 and concentrated in vacuo to afford crude product which was purified by column chromatography (silica gel, 1.8:8.2 Acetone:Pet. Ether) to afford title compound (100 mg, 64.4%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09018249B2
Source datasetuspto-grants-2015_04
ORD IDord-c8425088aa484728ab9321d0eb7a0218
Source noteuspto-grants-2015_04