| abstract |
The present invention relates to a new physiologically active substance, Plipastatin, of the following general formula n<CHEM>n wherein R1 is -C13H27 or -C14H29, R2 is Ala or Val, and the abbreviations Glu, Orn, Tyr, Thr, Pro, Gln, Ile, Ala and Val respectively mean glutaminic acid, ornithine, tyrosine, threonine, proline, glutamine, isoleucine, alanine and valine. The present invention also relates to salts of Plipastatin and to a process for preparing Plipastatin. Plipastatin is useful as an immunosuppressive agent and an anti-allergic agent having low toxicity and exhibiting a new mechanism of action. |