Cesium fluoride → (S)-4-Amino-6-((1-(5-methyl-4-oxo-3-phenyl-3,4-dihydropyrrolo[2,1-f][1,2,4]triazin-2-yl)ethyl)amino)pyrimidine-5-carboxylic acid

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Reaction Steps

(S)-2-(1-Aminoethyl)-5-methyl-3-phenylpyrrolo[2,1-f][1,2,4]triazin-4(3H)-one (270 mg, 0.89 mmol), 4-amino-6-chloropyrimidine-5-carboxylic acid (190 mg, 0.88 mmol, prepared according to Lan, Ruoxi et al from PCT Int. Appl. (2013), WO 2013040059 A1 20130321), DIEA (1.54 ml, 8.84 mmol) and cesium fluoride (403 mg, 2.65 mmol) were suspended in ethanol (10 ml) and the mixture was heated to reflux for 72 h. The solvent was evaporated under reduced pressure and the residue was purified by flash chromatography using SP1® Purification System (0% to 70%, ethyl acetate-methanol) to obtain 106 mg (27% yield) of the title compound. Purity: 90%.

Provenance & Evidence