著者

HIROSHI SANO TOSHIAKI SUNAZUKA HARUO TANAKA KINYA YAMASHITA RYO OKACHI SATOSHI OMURA

出版者

JAPAN ANTIBIOTICS RESEARCH ASSOCIATION

雑誌

The Journal of Antibiotics (ISSN:00218820)

巻号頁・発行日

vol.38, no.10, pp.1350-1358, 1985 (Released:2006-04-19)

参考文献数

5

被引用文献数

6 9

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3, 3"-Di-O-acyl-4"-O-sulfonyl and 3, 3"-di-O-acyl-4"-O-alkyl derivatives of spiramycin I were synthesized and evaluated by four parameters, antibacterial activity, affinity to ribosomes, lypophilicity and therapeutic effects. Among them, 3, 3"-di-O-acetyl-4"-O-mesyl and 3, 3"-di-O-acetyl-4"-O-methylspiramycin I having relatively small substituents at 4"-position were the most effective in mouse protection tests, and the results were comparable to acetylspiramycin.

著者

Yoshihiro Watanabe Yurika Yoshida Toshiyuki Tokiwa Mayuka Higo Sayaka Ban Akari Ikeda Yoshihiko Noguchi Tomoyasu Hirose Toshiaki Sunazuka Kenichi Nonaka Takashi Yaguchi Masato Iwatsuki

出版者

Applied Microbiology, Molecular and Cellular Biosciences Research Foundation

雑誌

The Journal of General and Applied Microbiology (ISSN:00221260)

巻号頁・発行日

pp.2022.03.002, (Released:2022-05-20)

参考文献数

15

被引用文献数

3

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A new antifungal polyketide, named hakuhybotric acid (1), was isolated from a cultured broth of a mycoparasitic fungus Hypomyces pseudocorticiicola FKI-9008, together with two known analogs, F2928-1 (2) and Cladobotric acid E (3). Their structures were elucidated by MS and NMR analyses. The structure of hakuhybotric acid was the two epoxy groups of F2928-1 converted to olefins. All compounds showed antifungal activity against four different species of Aspergillus spp., the causative agents of aspergillosis. It was suggested that mycoparasitic fungi are a useful source to search antifungal drug lead compounds.