Tsunakawa M, Toda S, Okita T, Hanada M, Nakagawa S, Tsukiura H, Naito T, Kawaguchi H
J Antibiot (Tokyo). 1980 Feb;33(2):166-72. doi: 10.7164/antibiotics.33.166.
The structures of Bu-2313 A and B have been determined. They are dienoyltetramic acid-containing antibiotics structurally related to streptolydigin and tirandamycin.