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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1052700Generated: November 4, 2026

Potassium Carbonate → (S)-5-Methyl-2-(1-((6-methylthieno[2,3-d]pyrimidin-4-yl)amino)ethyl)-3-phenylpyrrolo[2,1-f][1,2,4]triazin-4(3H)-one

https://huagongshe.com/reaction/1052700

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantAmmonium ChlorideHCID 25517—
ReactantTrimethylboroxineHCID 574072—
Reactant(S)-2-(1-((6-Bromothieno[2,3-d]pyrimidin-4-yl)amino)ethyl)-5-methyl-3-phenylpyrrolo[2,1-f][1,2,4]triazin-4(3H)-oneHCID 118433746—
CatalystHCID 178418397HCID 178418397—
SolventDimethylformamideHCID 6228—
Product(S)-5-Methyl-2-(1-((6-methylthieno[2,3-d]pyrimidin-4-yl)amino)ethyl)-3-phenylpyrrolo[2,1-f][1,2,4]triazin-4(3H)-oneHCID 73776064—

Reaction Conditions

Temperature130 °C

Reaction Steps

(S)-2-(1-((6-Bromothieno[2,3-d]pyrimidin-4-yl)amino)ethyl)-5-methyl-3-phenylpyrrolo[2,1-f][1,2,4]triazin-4(3H)-one (50 mg, 0.10 mmol) was dissolved in 3 mL dimethylformamide. Potassium carbonate (287 mg, 2.08 mmol), tetrakis(triphenylphosphine)palladium(0) (12 mg, 0.01 mmol) and trimethylboroxine (130 μl, 0.93 mmol) were added under argon conditions. The reaction mixture was stirred at 130° C. for 2 h. The crude was poured into 25 mL saturated ammonium chloride solution and extracted twice with ethyl acetate. The organics were dried over magnesium sulphate, filtered and evaporated under reduced pressure. The residue was purified using SP1® Purification System by reverse phase to obtain 26 mg (60% yield) of a yellow solid as a title compound. Purity 100%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09388189B2
Source datasetuspto-grants-2016_07
ORD IDord-50ef15b0677243fd9ca87d6588badaa6
Source noteuspto-grants-2016_07