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Topsentiasterol sulfates with novel iodinated and chlorinated side chains from the marine sponge Topsentia sp.

โœ Scribed by Alla G. Guzii; Tatyana N. Makarieva; Vladimir A. Denisenko; Pavel S. Dmitrenok; Yuliya V. Burtseva; Vladimir B. Krasokhin; Valentin A. Stonik

Book ID
104095903
Publisher
Elsevier Science
Year
2008
Tongue
French
Weight
163 KB
Volume
49
Category
Article
ISSN
0040-4039

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โœฆ Synopsis

Three new marine polar steroids, the first chlorine-containing steroid sulfate (1), topsentiasterol sulfate F (2) and the first natural iodinated steroid (3) have been isolated from the marine sponge Topsentia sp. The structures of 1-3 were elucidated using NMR and HRESIMS as well as by chemical correlation of 1 with previously known topsentiasterol sulfate D. Compound 1 proved to be an effective inhibitor of endo-1,3b-D-glucanase from the marine mollusc Spisula sachalinensis.

๐Ÿ“œ SIMILAR VOLUMES

Topsentiasterol sulfates, antimicrobial
Topsentiasterol sulfates, antimicrobial sterol sulfates possessing novel side chains, from a marine sponge, Topsentia sp.
โœ Nobuhiro Fusetani; Motohiko Takahashi; Shigeki Matsunaga ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 382 KB

Five novel antimicrobial steroid sulfates, tqsentiastaol sulfates A-E (l-5) have been isolated from a marine sponge, Topsentio sp. Theii structures were elucidated to be 2.3.4, Ctetrahydroxy-M-methyl A%~I) sterol-2,3,6-trisulfates with unusual side chains. Topsentiasterol sulfates A-D have &de chain