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HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
HRID 2386513Erstellt: 25. Oktober 2026

Dimethylbarbituric acid → 4-(2-{4-[3-(tert-Butylamino-methyl)-phenyl]-pyrimidin-2-ylamino}-ethyl)-phenol

https://huagongshe.com/reaction/2386513

Reaktionsgleichung

Beteiligte Stoffe

RolleNameHCIDEinwaage
EduktDimethylbarbituric acidHCID 69860—
EduktDiisopropylethylamineHCID 81531—
Edukttert-Butyl-(3-{2-[2-(4-hydroxy-phenyl)-ethylamino]-pyrimidin-4-yl}benzyl)-carbamic acid allyl esterHCID 67045134—
KatalysatorHCID 178418397HCID 178418397—
LösungsmittelDichloromethaneHCID 6344—
Produkt4-(2-{4-[3-(tert-Butylamino-methyl)-phenyl]-pyrimidin-2-ylamino}-ethyl)-phenolHCID 5860340878%

Reaktionsschritte

tert-Butyl-(3-{2-[2-(4-hydroxy-phenyl)-ethylamino]-pyrimidin-4-yl}benzyl)-carbamic acid allyl ester (intermediate 118, 176 mg) was dissolved in methylene chloride (5 mL), followed by addition of diisopropylethylamine (0.11 mL), 1,3-dimethylbarbituric acid (78 mg) then Pd(PPh3)4 (50 mg). The mixture was stirred at room temperature overnight. The mixture was washed with saturated NaHCO3, brine, dried over Na2SO4, filtered and chromatographed on silica gel with methylene chloride:methanol (95:5) to afford 112 mg of product in 78% yield. LC-MS showed the product had the expected M+H+ of 377. 1H NMR (Varian 300 MHz, CD3OD, shifts relative to the solvent peak at 3.31 ppm) δ 8.3 (d, 1H) 8.1 (s, 1H) 8.0 (d, 1H) 7.5 (m, 2H) 7.1 (m, 3H) 6.7 (m, 2H) 3.8 (s, 2H) 3.6 (m, 2H) 2.8 (m, 2H) 1.2 (s, 9H).

Herkunft & Nachweise

DOI10.6084/m9.figshare.5104873.v1
PatentnummerUS08268822B2
Quelldatensatzuspto-grants-2012_09
ORD IDord-571f48e27eac4c4b94af97da5160b171
Quellennotizuspto-grants-2012_09