𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Several new isoprenoids from two marine sponges of the family Axinellidae

✍ Scribed by Amira Rudi; Tesfamariam Yosief; Michael Schleyer; Yoel Kashman

Publisher
Elsevier Science
Year
1999
Tongue
French
Weight
872 KB
Volume
55
Category
Article
ISSN
0040-4020

No coin nor oath required. For personal study only.

✦ Synopsis

Ten new isoprenoids have been isolated from two marine sponges Ptilocaulis spiculifer and Axinella weltneri. P. spiculifer afforded three triterpenes, dihydroyardenone (1), abudinol B (2), muzitone (3) and two Ct3 and CI7 metabolites of abudinol, nakorone (4) and durgarnone (5). A. weltneri gave five new sodwanones, N-R (6 -10). The structures of all new compounds were elucidated by spectroscopic analyses, mainly NMR data, and by chemical transformations to known compounds and degradations. The absolute configuration of several compounds was determined by optical measurements and comparison of the CD-eurves with those of several raspacionins. Several sodwanones were found to be cytotoxic.

πŸ“œ SIMILAR VOLUMES

New cytotoxic acridine alkaloids from tw
New cytotoxic acridine alkaloids from two deep water marine sponges of the family Pachastrellidae
✍ Geewananda P. Gunawardana; Shigeo Kohmoto; Neal S. Burres πŸ“‚ Article πŸ“… 1989 πŸ› Elsevier Science 🌐 French βš– 295 KB

Fused ring alkaloids having the pyrido[4,3,2-mnlacridine skeleton comprise a new class of marine natural products.laeh Their biological activityle and challenging structure elucidation make them an interesting group

Two New Ceramides from the Marine Sponge
Two New Ceramides from the Marine Sponge Ircinia fasciculata
✍ Guang-Wen Zhang; Xiang-Quan Ma; Cui-Xian Zhang; Jing-Yu Su; Wen-Cai Ye; Xiao-Qi πŸ“‚ Article πŸ“… 2005 πŸ› John Wiley and Sons 🌐 German βš– 76 KB

## Abstract A new 4‐sulfated ceramide, ircisulfamide (=__N__‐[(1__S__\*,2__S__\*,3__R__\*)‐2‐hydroxy‐1‐(hydroxymethyl)‐3‐(sulfooxy)heptadecyl]hexadecanamide; **1**), and a new glycosphingolipid, ircicerebroside (=(2__R__\*)‐__N__‐{(1__S__\*,2__R__\*,3__E__,7__E__)‐1‐[(__Ξ²__‐D‐glucopyranosyloxy)meth