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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1052656Generated: November 2, 2026

Triethylamine → (S)-2-(1-((6-Amino-5-(3-fluoro-4-hydroxyphenyl)pyrimidin-4-yl)amino)ethyl)-3-phenylpyrrolo[2,1-f][1,2,4]triazin-4(3H)-one

https://huagongshe.com/reaction/1052656

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant(S)-2-(1-((6-Amino-5-(3-fluoro-4-hydroxyphenyl)pyrimidin-4-yl)amino)ethyl)-5-bromo-3-phenylpyrrolo[2,1-f][1,2,4]triazin-4(3H)-oneHCID 118433808—
ReactantHCID 178418361HCID 178418361—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
SolventDimethylformamideHCID 6228—
Product(S)-2-(1-((6-Amino-5-(3-fluoro-4-hydroxyphenyl)pyrimidin-4-yl)amino)ethyl)-3-phenylpyrrolo[2,1-f][1,2,4]triazin-4(3H)-oneHCID 737751044%

Reaction Steps

(S)-2-(1-((6-Amino-5-(3-fluoro-4-hydroxyphenyl)pyrimidin-4-yl)amino)ethyl)-5-bromo-3-phenylpyrrolo[2,1-f][1,2,4]triazin-4(3H)-one (150 mg, 0.28 mol) was dissolved in 10 mL methanol and 2 mL dimethylformamide. Triethylamine and palladium on carbon were added under nitrogen atmosphere and the mixture was submitted at 30 psi of hydrogen conditions for 4 h. Further catalyst was added and the mixture was hydrogenated at 30 psi for 48 h. The reaction mixture was filtered off and evaporated to dryness. The residue was purified by reverse phase using SP1® Purification System and then was purified by normal phase (0% to 100%, hexane-ethyl acetate) to give 5 mg (4%) of the title compound as a solid. Purity 99%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09388189B2
Source datasetuspto-grants-2016_07
ORD IDord-3a7640d345234edeabab603e7470f552
Source noteuspto-grants-2016_07