| abstract |
(57) [Summary] [Structure] The following formula (I), formula (II), and formula (II I), and formula (IV) Compound AM6898A and compound AM6898 represented by B, compound AM6898C, and compound AM6898 A compound selected from the group consisting of D, and a method for producing by a microorganism having the ability to produce the compound belonging to the genus Pseudoalescheria. [Effect] The compound of the present invention has an effect of suppressing IgE production and is useful as an immunosuppressant. |