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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1366208Generated: October 26, 2026

Sodium Carbonate → Ammonia

https://huagongshe.com/reaction/1366208

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
Reactant4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 2774010—
Reactant(5-Bromo-imidazo[1,2-a]pyrazin-8-yl)-(5-morpholin-4-yl-pyridin-2-yl)-amineHCID 59023091—
CatalystHCID 178418397HCID 178418397—
Solvent1,4-DioxaneHCID 31275—
ProductAmmoniaHCID 222—
ProductN-(5-Morpholinopyridin-2-yl)-5-(1H-pyrazol-4-yl)imidazo[1,2-a]pyrazin-8-amineHCID 59023111—

Reaction Steps

In the same way as described for compound 127, step 4 using (5-bromo-imidazo[1,2-a]pyrazin-8-yl)-(5-morpholin-4-yl-pyridin-2-yl)-amine (100 mg, 0.266 mmol), 4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole (77.6 mg, 0.4 mmol), Pd(PPh3)4 (77 mg, 0.066 mmol) and 1.5M Na2CO3 (1.42 mL, 2.13 mmol) in dioxane (4 mL). The crude compound is purified by silica gel column chromatography eluting with 96:4 DCM:NH3 (7M in MeOH) to afford the title compound which is triturated with diethyl ether (12.9 mg, 8%) and converted into the mesylate salt (6.1 mg, 38%) LCMS: Rt 1.95 min (96%), m/z (APCI) 363 (M+H)+, 1H-NMR (400 MHz, d6-DMSO) δ (ppm) 2.34 (3H, s, MsOH), 3.20 (4H, m), 3.83 (4H, m), 7.38 (1H, br s), 7.64 (1H, br s), 7.71 (1H, s), 7.86 (1H, d), 7.98 (1H, d), 8.04 (2H, m), 8.35 (2H, br s), 8.43 (1H, s).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07893058B2
Source datasetuspto-grants-2011_02
ORD IDord-d2e88059c92c46cd8c39393a1b5e398e
Source noteuspto-grants-2011_02