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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1992432Generated: October 30, 2026

Dimethylformamide → 1-(8-Fluoro-2-phenyl-quinolin-7-yl)-3-([1,3,4]thiadiazol-2-ylsulfanyl)-imidazo[1,5-a]pyrazin-8-ylamine

https://huagongshe.com/reaction/1992432

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantPotassium CarbonateHCID 11430—
Reactant2-Bromo-1,3,4-thiadiazoleHCID 2795198—
Reactant8-Amino-1-(8-fluoro-2-phenyl-quinolin-7-yl)-imidazo[1,5-a]pyrazine-3-thiolHCID 16753680—
Product1-(8-Fluoro-2-phenyl-quinolin-7-yl)-3-([1,3,4]thiadiazol-2-ylsulfanyl)-imidazo[1,5-a]pyrazin-8-ylamineHCID 16755140—

Reaction Conditions

Temperature100 °C

Reaction Steps

A 10 mL microwave vessel was charged with a solution of 8-amino-1-(8-fluoro-2-phenyl-quinolin-7-yl)-2H-imidazo[1,5-a]pyrazine-3-thione (20 mg, 0.00005 mol), 2-bromo-1,3,4-thiadiazole (0.017 g, 0.00010 mol) and potassium carbonate (0.021 g, 0.00015 mol) in DMF (1.4 mL, 0.018 mol). The reaction mixture was heated in the microwave at 100° C. for 10 min. The reaction mixture was concentrated in vacuo and purification by Gilson HPLC eluting with 10→65% acetonitrile: H2O afforded the title compound as a light yellow solid. 1H NMR (400 MHz, CDCl3): δ=7.31 (d, J=5.05 Hz, 1H), 7.47-7.58 (m, 3H), 7.69-7.80 (m, 3H), 8.05 (d, J=8.84 Hz, 1H), 8.24 (dd, J=8.34, 1.52 Hz, 2H), 8.32 (dd, J=8.72, 1.39 Hz, 1H), 9.07 (s, 1H). MS(ES+): m/z 472.13 (100)[MH+]. HPLC: tR=2.9 min (Open Lynx polar—5 min).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07648987B2
Source datasetuspto-grants-2010_01
ORD IDord-0cffeb3867f94acd93136b95c11b0233
Source noteuspto-grants-2010_01