| abstract |
(57) [Problem] To provide a pharmaceutical composition containing a biologically active carboxylic acid ester. SOLUTION: The formula: CH 3 —CH 2 —CH 2 —C (ＯO) —O—CHR—O— (O =) CR ′ (wherein R is hydrogen or alkyl, and R ′ is Alkyl, except that R is hydrogen and R ′ is tert-butyl) At least one pharmaceutically acceptable adjuvant, Provided is a pharmaceutical composition for treating a tumor in a mammal or modulating an immune response in a mammal, comprising a diluent or a carrier. |