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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 456168Generated: October 27, 2026

Semicarbazide hydrochloride → HCID 50898365, compound

https://huagongshe.com/reaction/456168

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSemicarbazide hydrochlorideHCID 11236—
Reactant1-[3-(7-Fluoro-quinolin-6-ylmethyl)-3H-[1,2,3]triazolo[4,5-b]pyrazin-5-yl]-ethanoneHCID 58190578—
SolventMethanolHCID 887—
ProductHCID 50898365HCID 5089836573.2%

Reaction Conditions

Temperature45 °C

Reaction Steps

To a solution of 1-[3-(7-fluoro-quinolin-6-ylmethyl)-3H-[1,2,3]triazolo[4,5-b]pyrazin-5-yl]-ethanone (30.0 mg, 0.09 mmol) in MeOH (10 mL), was added hydrazinecarboxamide hydrochloride (31.0 mg, 0.28 mmol). The mixture was heated at 45° C. and stirred overnight. The solvent was removed under reduced pressure. The residue was purified by silica gel column chromatography with gradient (DCM:MeOH=10:1) to give the title compound as a white solid (25.0 mg, 67%). 1H-NMR (400 MHz, DMSO-d6) δ ppm 9.91 (s, 1H), 9.85 (s, 1H), 8.93 (dd, 1H), 8.42 (d, 1H), 8.185 (d, 1H), 7.83 (d, 1H), 7.54 (dd, 1H), 6.20 (s, 2H), 2.28 (s, 3H). LCMS (method A): [MH]+=380, tR=1.98 min.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08497368B2
Source datasetuspto-grants-2013_07
ORD IDord-c6438a09386e49b297660b9192f670af
Source noteuspto-grants-2013_07