Specificity of esterases and structures of prodrug esters. III. Activity of rat tissue homogenates, rat plasma and porcine liver esterase for the hydrolysis of 3',5'-bis-dicarboxylic acid hemiesters of 5-fluoro-2'-deoxyuridine. - Kawaguchi T; Suzuki Y; Nambu N; Nagai T (Chemical & pharmaceutical bulletin, 1985)