abstract |
Nucleoside derivatives 6-acetoxy-5-fluoro-n5,6-dihydrouracil of formula Inwherein R = 2,3,5-tri-O-acetylribosyl, 2,3-di-n-O-acetyl-5-deoxyribosyl, 2,3-di-O-acetyl-5-n-chloro-5-deoxyribosyl and economicalnpreparation. These derivatives allow productionnhigh purity 5-fluorouracil cancerostaticsnwith high yields. |