Sodium → HCID 20130582, compound

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using isopropyl 2-chloro-4-fluoro-5-{3-[2-(ethoxycarbonyl)-2-fluoro-1-methylvinyl]ureido}-benzoate with sodium isopropylate in an isopropanol/dimethylformamide mixture there is obtained isopropyl 2-chloro-4-fluoro-5-[3,6-dihydro-5-fluoro-4-methyl-2,6-dioxo-1(2H)-pyrimidinyl]-benzoate, 1H-NMR (CDCl3, 400 MHz) 9.99 ppm (s, 1H), 7.84 ppm (d, 1H), 7.37 ppm (d, 1H), 5.26 ppm (m, 1H), 2.18 ppm (d, 3H), 1.38 ppm (d, 3H), 1.36 ppm (d, 3H),

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