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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 84290Generated: October 29, 2026

p-Toluenesulfonic acid → HCID 57326693, compound

https://huagongshe.com/reaction/84290

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
ReactantHCID 86671957HCID 86671957—
SolventEthanolHCID 702—
ProductHCID 57326693HCID 5732669342.6%

Reaction Steps

Pyrinium p-toluenesulfonate (20 mg, 0.080 mmol) was added to a solution of (2R)-4-(3-fluoro-2-oxo-4-phenylpyridin-1(2H)-yl)-2-methyl-2-(methylsulfonyl)-N-(tetrahydro-2H-pyran-2-yloxy)butanamide (110 mg, 0.236 mmol) in ethanol (5 ml) and heated at reflux for 3 hours. The solution was cooled to RT, and upon cooling, a solid precipitated. The solid was collected via filtration and washed with ethanol (5 mL), heptane (10 mL), and ether (10 mL). The solid was dried under vacuum to afford the title compound as a yellow solid (38.4 mg, 42.6%). LC-MS m/z 383.0 (M+1). 1H NMR (400 MHz, DMSO-d6) δ ppm 1.60 (s, 3 H) 2.10-2.26 (m, 1 H) 3.11 (s, 3 H) 3.70-3.94 (m, 1 H) 4.07-4.30 (m, 1 H) 6.46 (t, J=6.93 Hz, 1 H) 7.46-7.57 (m, 3 H) 7.59-7.65 (m, 3 H)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08846933B2
Source datasetuspto-grants-2014_09
ORD IDord-1a0eb0287125433b83ff668985aba2e8
Source noteuspto-grants-2014_09