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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 592223Generated: October 31, 2026

Toluene → US10251893, Cpd 197

https://huagongshe.com/reaction/592223

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTolueneHCID 1140—
ReactantSodium CarbonateHCID 10340—
Reactant2-Methylpyridine-4-boronic acid pinacol esterHCID 16414274—
ReactantN-(5-(4-acetylpiperazin-1-yl)pyridin-2-yl)-2-(6-chloro-5-(methylsulfonyl)pyridin-3-yl)acetamideHCID 86657957—
CatalystHCID 178418397HCID 178418397—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductUS10251893, Cpd 197HCID 58447656—

Reaction Conditions

Temperature100 °C

Reaction Steps

To a sealed tube were added N-(5-(4-acetylpiperazin-1-yl)pyridin-2-yl)-2-(6-chloro-5-(methylsulfonyl)pyridin-3-yl)acetamide 197-7 (30 mg, 0.07 mmol), 2-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine 183-2 (22 mg, 0.10 mmol), Pd(PPh3)4 (4 mg, 0.003 mmol), Na2CO3 (22 mg, 0.20 mmol), Toluene (0.4 mL), H2O (0.4 mL) and ethanol (0.1 mL). The reaction mixture was stirred at 100° C. overnight. After cooling to room temperature, the solvents were removed by rotary evaporation. The crude product was purified by reverse phase HPLC to give N-(5-(4-acetylpiperazin-1-yl)pyridin-2-yl)-2-(2′-methyl-3-(methylsulfonyl)-2,4′-bipyridin-5-yl)acetamide 197. MS m/z 509.2 (M+1); 1H NMR 400 MHz (MeOD) δ 8.81(d, 1H), 8.52(d, 1H), 8.49(d, 1H), 7.97(s, 1H), 7.87(d, 1H), 7.47(s, 1H) 7.41(dd, 1H), 7.37(dd, 1H), 3.95(s, 2H), 3.68(t, 2H), 3.63(t, 2H), 3.15(t, 2H), 3.09(t, 2H), 2.92(s, 3H), 2.57(s, 3H), 2.09(s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09238646B2
Source datasetuspto-grants-2016_01
ORD IDord-63d7a571c6334ae5a6a2279ce3ca05b0
Source noteuspto-grants-2016_01