| 摘要 |
A sphingoglycolipid represented by general formula (I), which can be isolated from a microbial cell of the genus Sphingomonas and can be used as a B cell activator because it has a mitogenic activity for B cells, wherein Q represents hydrogen or a specified sugar chain, and R represents C18-sphinganyl or 13,14-cis-methylene(or unsaturated)-C20-sphinganyl. |
