Phosphorus oxychloride → HCID 21270766, compound

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using isopropyl 2-chloro-5-[3,6-dihydro-2,6-dioxo-5-fluoro-4-pentafluoroethyl-1(2H)-pyrimidinyl]-4-fluorobenzoate with phosphorus oxychloride and pyridine within 6 hours at room temperature there is obtained isopropyl 2-chloro-5-[2-chloro-5-fluoro-6-oxo-4-pentafluoroethyl-1(6H) -pyrimidinyl]-4-fluorobenzoate, 1H-NMR (CDCl3, 400 MHz): 7.88 ppm (d,1H), 7.48 ppm (d,1H), 5.28 ppm (m,1H), 1.39 ppm (d,6H),

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