Bromopyrrole Alkaloids from the Sponge Agelas kosrae

Autor: Oh-Seok Kwon, Donghwa Kim, Heegyu Kim, Yeon-Ju Lee, Hyi-Seung Lee, Chung J. Sim, Dong-Chan Oh, Sang Kook Lee, Ki-Bong Oh, Jongheon Shin
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Marine Drugs, Vol 16, Iss 12, p 513 (2018)
Druh dokumentu: article
ISSN: 1660-3397
DOI: 10.3390/md16120513
Popis: Two new sceptrin derivatives (1,2) and eight structurally-related known bromopyrrole-bearing alkaloids were isolated from the tropical sponge Agelas kosrae. By a combination of spectroscopic methods, the new compounds, designated dioxysceptrin (1) and ageleste C (2), were determined to be structural analogs of each other that differ at the imidazole moiety. Dioxysceptrin was also found to exist as a mixture of α-amido epimers. The sceptrin alkaloids exhibited weak cytotoxicity against cancer cells. Compounds 1 and 2 also moderately exhibited anti-angiogenic and isocitrate lyase-inhibitory activities, respectively.
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