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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1519158Generated: November 4, 2026

Potassium Carbonate → HCID 77844248, compound

https://huagongshe.com/reaction/1519158

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant2-Chloro-4-methylpyrimidineHCID 11629607—
ReactantHCID 90311095HCID 90311095—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 77844248HCID 7784424845%

Reaction Conditions

Temperature100 °C

Reaction Steps

A suspension of 3-(5-aminopyrazin-2-yl)-6-cyclobutyl-2-fluorophenol (25 mg, 0.096 mmol), 2-chloro-4-methylpyrimidine (14 mg, 0.11 mmol), and K2CO3 (27 mg, 0.19 mmol) in DMSO (2 mL) was heated at 100° Celsius for 16 hours. The reaction was then cooled to room temperature, filtered, and the filtrate directly subjected to HPLC purification to give 5-{4-cyclobutyl-2-fluoro-3-[(4-methylpyrimidin-2-yl)oxy]phenyl}pyrazin-2-amine (15 mg, 45%). MS (ESI): mass calcd. for C19H18FN5O, 351.15; m/z found, 352.1 [M+H]+. 1H NMR (400 MHz, CDCl3) δ 8.37-8.33 (m, 1H), 8.26 (d, J=1.9, 2H), 7.81-7.75 (m, 1H), 7.26 (d, J=8.3, 1H), 7.00-6.97 (m, 1H), 3.75-3.63 (m, 1H), 2.52 (d, J=2.0, 3H), 2.27-2.09 (m, 4H), 2.04-1.92 (m, 1H), 1.87-1.76 (m, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09073876B2
Source datasetuspto-grants-2015_07
ORD IDord-208c9bba60b644d7b8fca10e39c89400
Source noteuspto-grants-2015_07