Synthesis and Biological Activity of the New 5-Fluorocytosine Derivatives, 5′-Deoxy-N-alkyloxycarbonyl-5-fluorocytosine-5′-carboxylic Acid.

A series of 5-fluorocytosine derivatives, 5'-deoxy-N-alkyloxycarbonyl-5-fluorocytosine-5'-carboxylic acid 6, were synthesized and evaluated for their antitumor activity.