126398-97-8Relevant articles and documents
NOVEL EPIDITHIODIOXOPIPERAZINES, EMETHALLICINS E AND F, FROM EMERICELLA HETEROTHALLICA
Kawahara, Nobuo,Nozawa, Koohei,Yamazaki, Mikio,Nakajima, Shoichi,Kawai, Ken-ichi
, p. 507 - 515 (2007/10/02)
Novel epidithiodioxopiperazines, emethallicins E (1) and F (2), were isolated from the mycelial extract of Emericella heterothallica (mating type A).The structures of emethallicins E (1) and F (2) were determined on the basis of spectroscopic and chemical investigation, compared with other emethallicins isolated from the above fungus and the other strain.Emethallicin E (1) is an epidithiodioxopiperazine having a novel carbon skeleton related to emethallicins A (3), B (4), C (5), and D (6), whereas emethallicin F (2) has the same carbon skeleton as emethallicins A (3),B (4), and D (6).Emethallicins E (1) and F (2) have a potent inhibitory activity for histamine release as well as the other emethallicins.