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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1474651Generated: November 3, 2026

Pyridine → HCID 131732776, compound

https://huagongshe.com/reaction/1474651

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantO-Methylhydroxylamine hydrochlorideHCID 521874—
ReactantHCID 117761404HCID 117761404—
SolventEthanolHCID 702—
ProductHCID 131732776HCID 13173277657.8%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a solution of (2R,3R,4R,5S,6S)-2-(acetoxymethyl)-6-(4-cyano-3-(4-(2-oxoethoxy)benzyl)phenyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate (100.0 mg, 0.17 mmol) in ethanol (4 mL) under nitrogen atmosphere, was added pyridine (0.07 mL, 0.86 mmol) and O-methylhydroxylamine hydrochloride (28.7 mg, 0.34 mmol). The reaction mixture was heated at 80° C. for 2 h. After completion of the reaction as confirmed by TLC, the solvent was evaporated. The crude compound was diluted with ethyl acetate (40 mL). The organic layer was separated, washed with 5% HCl (10 mL), water (10 mL), dried over Na2SO4 and concentrated in vacuo to afford crude product which was purified by column chromatography (silica gel, 1:49 EtOAc:Pet Ether) to afford title compound (60 mg, 43%) as solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09018249B2
Source datasetuspto-grants-2015_04
ORD IDord-de35c2907f824c8b8bb02a5aa11c7f0b
Source noteuspto-grants-2015_04