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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1947634Generated: October 28, 2026

Pyridine → HCID 49834169, compound

https://huagongshe.com/reaction/1947634

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantDichloromethaneHCID 6344—
Reactant1-Methyl-1H-pyrazole-3-sulfonyl chlorideHCID 13474466—
ReactantHCID 67223633HCID 67223633—
ProductHCID 49834169HCID 4983416941%

Reaction Steps

To a stirred solution of 7-benzylamino-3,4-dihydro-2H-isoquinolin-1-one (100 mg, 0.34 mmol) and pyridine (63 μl, 0.77 mmol) in anhydrous dichloromethane (2 ml) was added 1-methyl-1H-pyrazole-3-sulfonyl chloride (138 mg, 0.77 mmol) and the reaction heated at reflux for 15 hrs. The reaction was cooled and the solvent evaporated in vacuo. The crude residue was purified by flash column chromatography (50% ethyl acetate in dichloromethane) to afford the title compound as a colourless solid (63 mg, 41%). HPLC retention time 4.16 min. Mass spectrum (ES+) m/z 431 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08399481B2
Source datasetuspto-grants-2013_03
ORD IDord-db78560a1666401c8963e98dc7d9e68a
Source noteuspto-grants-2013_03