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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1947638Generated: October 25, 2026

Pyridine → 1-methyl-1H-pyrazole-3-sulfonic acid benzyl-(1-oxo-1,2,3,4-tetrahydro-isoquinolin-6-yl)-amide

https://huagongshe.com/reaction/1947638

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant1-Methyl-1H-pyrazole-3-sulfonyl chlorideHCID 13474466—
Reactant6-benzylamino-3,4-dihydro-2H-isoquinolin-1-oneHCID 67223915—
SolventAcetonitrileHCID 6342—
Product1-methyl-1H-pyrazole-3-sulfonic acid benzyl-(1-oxo-1,2,3,4-tetrahydro-isoquinolin-6-yl)-amideHCID 6722399814%

Reaction Conditions

Temperature150 °C

Reaction Steps

To a stirred solution of 6-benzylamino-3,4-dihydro-2H-isoquinolin-1-one (45 mg, 0.18 mmol) and pyridine (31 μl, 0.39 mmol) in anhydrous acetonitrile (1 ml) was added 1-methyl-1H-pyrazole-3-sulfonyl chloride (70 mg, 0.39 mmol) and the reaction heated to 150° C. in a microwave for 0.5 hrs. The solvent was evaporated in vacuo and the crude residue purified by preparative tlc (5% methanol in dichloromethane) to afford the title compound as a yellow solid (10 mg, 14%). HPLC retention time 3.83 min. Mass spectrum (ES+) m/z 397 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08399481B2
Source datasetuspto-grants-2013_03
ORD IDord-c56c91d3a32c4bb49b4d22546a0e637f
Source noteuspto-grants-2013_03