| abstract |
(57) [Summary] (Modified) [PROBLEMS] To provide a novel physiologically active substance having an excellent IL-1 production inhibitory action. SOLUTION: General formula (I) [Wherein R 1 and R 2 are different from each other and represent hydrogen or hydroxy, or R 1 and R 2 together represent oxygen, R 3 represents hydroxy, R 4 represents hydrogen or R 3 and R 4 together represent -O-. ] The novel compound EI-1 represented by 941 type. |