Antitumor activity of 15 1-acyloxymethyl derivatives of 5-fluorouracil was examined by both intraperitoneal injection and oral administration in L1210 leukemia system. Therapeutic ratio for dodecanoyloxymethyl derivative by intraperitoneal injection was 23 which was greater than that for 5-fluorouracil (11). On the other hand, undecanoyloxymethyl derivative of 5-fluorouracil showed the highest therapeutic ratio (5.8) when administered orally which was greater than that for 5-fluorouracil (1.9) and 1-(2-tetrahydrofuryl)-5-fluorouracil (1.0).
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| http://dx.doi.org/10.1248/bpb1978.5.208 | DOI Listing |
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