Synthesis and Structure–Antitumor Activity Relationship of Sulfonyl 5-Fluorouracil Derivatives
摘要:
Novel sulfonyl 5-fluorouracil derivatives 2 (5-fluoro-1-(arylsulfonyl) pyrimidine-2,4(1H,3H)-diones) have been synthesized via the reaction of 5-fluorouracil with sulfonyl chloride. Their chemical structures were confirmed by means of (HNMR)-H-1, C-13 NMR, IR, mass spectra, and elemental analyses, and, in the case of 2a, its structure was established by single crystal X-ray diffraction. Some of the compounds were assayed for anticancer (HL-60 and BEL-7402 cells) activities. Structure-activity relationship (SAR) analysis discovered that the anticancer activity was related to the configuration, and that electron-withdrawing groups at 2-position or 4-position on the aryl group of arylsulfonyl derivatives of 5-fluorouracil could enhance the anticancer activity against the BEL-7402 cells.
5-Fluorouracil derivatives represented by the formula ##SPC1## Wherein R is arylcarbonyl, substituted arylcarbonyl, heterocyclic carbonyl, alkylsulfonyl, arylsulfonyl, substituted arylsulfonyl, heterocyclic sulfonyl or alicyclic sulfonyl are effective antimetabolites useful in mammary gland or gastrointestinal cancer therapy.