abstract |
(57) [Summary] [Structure] The present invention has the general formula: (In the formula, R 1 , R 2 and R 5 , R 6 together represent H or a double bond, and R 3 and R 4 respectively represent H, alkyl and hydroxyalkyl.) Is a cancer metastasis inhibitor and a therapeutic agent for side effects of anticancer agents. [Effect] The pterin derivative or neopterin derivative is useful as an inhibitor of cancer metastasis and a therapeutic agent for side effects of anticancer agents. |